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Year Vol.
(Issue) Pages Author(s) Title

2007 30 3-18 K. Alpinar The Araceae of Turkey (Buy)
ABSTRACT: In Turkey the family Araceae is represented by 5 native genera [Arisarum Mill., Arum L., Biarum Schott, Dracunculus Mill., Eminium (Blume) Schottl. Besides exotic aroids widely grown as indoor ornamentals, Colocasia esculenta (L.) Schott is naturalized in two major cities (Antalya & Mersin) of the Mediterranean region and cultivated for their tubers as food; Zantedeschia aethiopica (L.) Sprengel is popular and grown outdoors mainly in the Aegean & Mediterranean regions for the cut-flower market. There are 36 native aroid taxa of which about 10 are endemic in Turkey. But as the native Turkish aroids exhibit significant variation in many morphological characters there are different approaches on systematics of the group. It seems that a biosystematic study will make a great contribution to the current knowledge of the Turkish aroids. The native aroids especially the representatives of Arum, have been found to be familiar to Turkish people and are used in traditional medicine & for food mainly in rural areas without paying attention to the kinds of the species. The details of the usage of Turkish aroids & their vernacular names, will be presented elsewhere.

2007 30 19-22 Thomas B. Croat, J. JosÃ© Castillo Mont, Jay Vannini A new endemic species of Anthurium sect. Pachyneurium (Araceae) for Guatemala (Buy)
ABSTRACT: A new endemic species of Anthurium section Pachyneurium , newly discovered in Guatemala, is compared with other species in the section. The species is unique among all Anthurium section Pachyneurium in having green berries.

2007 30 23-37 Thomas B. Croat, Jane Whitehill, Emily D. Yates A new subsection of Anthurium section Calomystrium (Araceae) and five new species from Columbia and Ecuador (Buy)
ABSTRACT: Subsection Rupicola, a new subsection of Anthurium section Calomystrium is proposed, encompassing nine rupicolous species. Descriptions and a key are provided for these species including: A. antrophyoides Killip, from Ecuador and Colombia, A. chocoense Croat and A. antioquiense Engler from Colombia, as well as A. amnicola Dressler, and A. sytsmae Croat from Panama. Five species, A. palacioanum Croat and A. weiffii Croat from Ecuador, and A. chocoense Croat, A. callejasii Croat, and A. vanderknaapii Croat, from Colombia, are described as new. Members of this group were previously thought to belong in section Porphyrochitonium because of their generally lanceolate leaf blades, and stems with short internodes. However, lack of distinct glandular punctations on blade surfaces and the ability to interbreed readily with other members of section Calomystrium indicate that this new group belongs in section Calomystrium, and has evolved without conspicuous posterior lobes typical of section Calomystrium, owing to their rupicolous habitat.

2007 30 38-44 Guy Gusman, Van Du Nguyen, David Scherberich, Jin-Yin Tao Geographic distributions of Arisaema barbatum Buchet and Arisaema ramulosum Alderw. (Araceae) (Buy)
ABSTRACT: We report here recent observations, made in the field, on the geographical distribution of two closely related Arisaema species, A. barbatum and A. ramulosum, both belonging to section Fimbriata. It is found that their respective areas of distribution are much wider than was previously noted, occurring in both the Indochinese and Malaysian phytogeographical regions.

2007 30 45-48 Li Heng A disjunct new population of Arisaema smiinandii S. Y. Hu (Araceae) from China (Buy)
ABSTRACT: A new population of Arisaema smitinandii S. Y. Hu is reported from Medog, SE Xizang, China. The large disjunction (ca. 2,300 km) from its previously known distribution in southern Thailand is discussed, and a description of the species is provided.

2007 30 49-52 Josef Bogner An additional note on Alloschemone occidentalis (Poepp.) Engl. & Krause (Buy)
ABSTRACT: Images intended to accompany an earlier publication of this species (Bogner, Boyce & Sakuragui, 2001) were lost. Additional material has now been received and images are published here.

2007 30 53-55 E. C. Morgan, Jon A. Sperling New species of Dracontium from Iquitos
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ABSTRACT: Dracontium iquitense, a new species to the genus, is described from northeastern Peru. Its identification from similar Peruvian species is discussed.

2007 30 56-70 Peter C. Boyce Studies on Schismatoglottideae (Araceae) of Borneo IV: Preliminary observations of spathe senescence mechanics in Schismatoglottis Zoll. & Moritzi in Sarawak (Buy)
ABSTRACT: Recent alpha-taxonomic studies of Schismatoglottis Zoll. & Moritzi provide a sufficiently stable framework to facilitate taxonomically robust multidisciplinary research, notably molecular phylogenetic, ecological and phenological studies including analyses of morphological adaptations to specialized ecology (in particular rheophytism), and comparison of mechanical processes linked to pollination strategies (notably spathe senescence). Such data will later be mapped onto molecular-generated phylogenetic trees in order to analyse their origins. The various processes by which the spathe limb is shed during or post anthesis is the subject here of a preliminary discussion. The significance of these data is reviewed in terms of the currently proposed informal infrageneric groupings.

2007 30 71-81 Peter C. Boyce Studies on Schismatoglottideae (Araceae) of Borneo V: Preliminary ecological observations of Schismatoglottis (Araceae: Schismatoglottideae) on Matang Massif (Buy)
ABSTRACT: The family Araceae in Sarawak comprises 31 genera, with more than 350 species, while on the Matang Massif alone 35 species in 14 genera are recorded to date. Of these Schismatoglottis Zollo & Moritzi is the richest and most diverse genus with nine species (Schismatoglottis asperata Engl., S. conoidea Engl., S. grabowski/ Engl., S. mayoana Bogner & M. Hotta, S. motleyana (Schott) Engl., S. multiflora Ridl., S. cf. neroosa Ridl., S. tecturata (Schott) Engl., S. wallichii Hook f) belonging to four of the informal species groups sensu Hay & Yuzammi (2000). Two of these nine, (S. mayoana and S. cf. nervosa) are endemic to Matang. Perhaps the most interesting aspect of these taxa is their ecological diversity. This paper will highlight these ecological aspects and speculate on the speciation processes involved in bringing about such diversity in a single genus.

2007 30 82-90 Josef Bogner, G. Petersen The chromosome numbers of the aroid genera (Buy)
ABSTRACT: A complete list of the chromosome numbers of the genera of Araceae is given, except for Croatiella E. G. Gonc, a genus recently described. The different chromosome numbers are discussed.

2007 30 91-97 J. Hernandez In Hawaiian rainforests: Exotic aroid ecologies (Buy)
ABSTRACT: No Araceae occur naturally in the Hawaiian Islands, but several species have escaped to become naturalized. Their habitat and distribution within the Islands was investigated. Species accounts and locality accounts are given.

2007 30 98-107 K. M. Aravinthan, R. Kamalakanna, V. Narmatha Bai Callus induction and high frequency shoot regeneration in Amorphophallus smithsonianus Sivadasan -- an aroid endemic to India (Buy)
ABSTRACT: Amorphophallus smithsonianus Sivadasan, an aroid endemic to Agasthiyamalai in the Western Ghats of Tamil Nadu, India, was selected for the present study. Investigations were undertaken for mass multiplication using tissue culture techniques. Among the different explants tested for in vitro culture, the laminar segments proved to be the best. MS medium supplemented with 2,4-D (2 mg/l) and L-glutamine (800 mgll) was found to be the best combination for induction of the callus forming the laminar tissue. Greening of the callus was best achieved in MS medium supplemented With SAP (2 mg/l}and adenine sulfate (30 mgll). Shoot-bud regeneration was achieved in MS medium supplemented with BAP (1 mgll) KIN (O.5 mgll) and adenine sulfate (30 mg/ 1). GA3 was found to be essential for the elongation of the shoot buds. MS + BAP (2mg/I) + KIN (0.5 mg/l) and AC (1g/1) proved to be the best combination for inducing maximum number of shoots from the green callus.

2007 30 108-116 A. M. A. Sakpere, O. Adedeji Micropropagation of two Caladium species (Buy)
ABSTRACT: Great differences occur in cell division and regenerative capacity between plants even within a single species. Therefore difference in callus induction and plant regeneration abilities of two Caladium species - Caladium bicolor and Caladium humboldtii was studied by culturing them on different combinations of growth regulators. Caladium humboldtii was found to be the more responsive genotype for callus induction while Caladium bicolor was the more responsive genotype for plant regeneration. Roots and shoots were more readily generated on corm explants in combinations of Kinetin and Naphtalene Acetic Acid (NAA) than in media containing different concentrations of 2,4-dichlorophenoxy acetic acid (2,4-D) and 1 mg/L Kinetin. Callus was generated on tubers of both species on media supplemented with 0.8 mg/L 2,4-D and 1 mg/L Kinetin.

2007 30 117-123 A. M. A. Sakpere, O. Adedeji Somaclonal variation and its effect on foliar epidermal characters of Caladium humboldtii Schott (Buy)
ABSTRACT: The ornamental value of Caladium species cannot be overemphasized and tissue culture is increasingly being employed in their propagation. Somaclonal variation is also exploited for the generation of new cultivars for the ornamental market. These variations essentially affect leaf morphology. Therefore, to see if there are corresponding anatomical differences, foliar epidermal studies were carried out on parent plant, Caladium humboldtii Schott, and a somaclonal variant (c. humboldtii 'Sakpere') derived from tuber explants cultured on full strength Murashige & Skoog's (962) medium supplemented with 3% (w/v) sucrose and 0.4 mg/L 2,4-D combined with 1.0 mg/L kinetin. Morphological differences observed were in the shape and colour of leaves of the in vitro derived plantlets. Foliar epidermal studies revealed significant differences in size of epidermal cells, stomatal index and stomatal size of the parent plant and the somaclonal variant. Circular-shaped stomata were encountered in C. humboldtii, these were sparse to absent in C. humboldtii 'Sakpere'.

2007 30 124-138 Tony Avent Propagation of Amorphophallus by leaf petiole cuttings (Buy)
ABSTRACT: It is our hope to expand the available information with regards to amorphophallus propagation by leaf petiole cuttings based on our experiments between 2004 and 2006. Leaf petiole propagation is certainly not a new idea but one that we felt deserved a more systematic experiment to refine our knowledge of the subject.

2007 30 139-140 John Banta Growing aroids from seed: Little packages; big surprises
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ABSTRACT: Many aroiders have questions about the best way to grow aroids from seed. A simple question, but like most simple and quick requests, the answer is far from short and easy. Since a number of articles relating to other methods of propagation had been submitted for this issue, it seemed to be a good idea to round these out by inviting contributions from some of the most active members of the society. These were the responses, sometimes going further than the practical by reminding us of the importance of increasing and spreading aroids in collections since so much of their habitat is being lost.

2007 30 140-141 Julius O. Boos Growing aroids from seed: Urospatha and other Lasieae
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ABSTRACT: Many aroiders have questions about the best way to grow aroids from seed. A simple question, but like most simple and quick requests, the answer is far from short and easy. Since a number of articles relating to other methods of propagation had been submitted for this issue, it seemed to be a good idea to round these out by inviting contributions from some of the most active members of the society. These were the responses, sometimes going further than the practical by reminding us of the importance of increasing and spreading aroids in collections since so much of their habitat is being lost.

2007 30 141-142 B. Fuerstein Growing aroids from seed: Seed growing
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ABSTRACT: Many aroiders have questions about the best way to grow aroids from seed. A simple question, but like most simple and quick requests, the answer is far from short and easy. Since a number of articles relating to other methods of propagation had been submitted for this issue, it seemed to be a good idea to round these out by inviting contributions from some of the most active members of the society. These were the responses, sometimes going further than the practical by reminding us of the importance of increasing and spreading aroids in collections since so much of their habitat is being lost.

2007 30 142-143 M. Mattlage Growing aroids from seed: Raising aroid seedlings at home
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ABSTRACT: Many aroiders have questions about the best way to grow aroids from seed. A simple question, but like most simple and quick requests, the answer is far from short and easy. Since a number of articles relating to other methods of propagation had been submitted for this issue, it seemed to be a good idea to round these out by inviting contributions from some of the most active members of the society. These were the responses, sometimes going further than the practical by reminding us of the importance of increasing and spreading aroids in collections since so much of their habitat is being lost.

2007 30 143 D. Rotalante Growing aroids from seed: A grower's viewpoint
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ABSTRACT: Many aroiders have questions about the best way to grow aroids from seed. A simple question, but like most simple and quick requests, the answer is far from short and easy. Since a number of articles relating to other methods of propagation had been submitted for this issue, it seemed to be a good idea to round these out by inviting contributions from some of the most active members of the society. These were the responses, sometimes going further than the practical by reminding us of the importance of increasing and spreading aroids in collections since so much of their habitat is being lost.

2007 30 143-144 Ryan Wachtl Growing aroids from seed: Last rites -- or many happy returns
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ABSTRACT: Many aroiders have questions about the best way to grow aroids from seed. A simple question, but like most simple and quick requests, the answer is far from short and easy. Since a number of articles relating to other methods of propagation had been submitted for this issue, it seemed to be a good idea to round these out by inviting contributions from some of the most active members of the society. These were the responses, sometimes going further than the practical by reminding us of the importance of increasing and spreading aroids in collections since so much of their habitat is being lost.

2007 30 144 Joe Wright Growing aroids from seed: Plant husbandry -- growing from seeds
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ABSTRACT: Many aroiders have questions about the best way to grow aroids from seed. A simple question, but like most simple and quick requests, the answer is far from short and easy. Since a number of articles relating to other methods of propagation had been submitted for this issue, it seemed to be a good idea to round these out by inviting contributions from some of the most active members of the society. These were the responses, sometimes going further than the practical by reminding us of the importance of increasing and spreading aroids in collections since so much of their habitat is being lost.

2007 30 145-161 Peter C. Boyce Germinating aroid seeds - some observations (Buy)
ABSTRACT: Many aroiders have questions about the best way to grow aroids from seed. A simple question, but like most simple and quick requests, the answer is far from short and easy. Since a number of articles relating to other methods of propagation had been submitted for this issue, it seemed to be a good idea to round these out by inviting contributions from some of the most active members of the society. These were the responses, sometimes going further than the practical by reminding us of the importance of increasing and spreading aroids in collections since so much of their habitat is being lost.