Your search for articles mentioning the genus Gearum has found 9 articles.

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Dan H. Nicholson Translation of Engler's classification of Araceae with updating (Buy)
 ABSTRACT: When Hooker (1883) was preparing the treatment of Araceae (Aroideae) for the monumental 'Genera Plantarum,' he basically followed the Schottian system, incorporating Engler's (1879) reduction in the number of genera. The first system was "popularized" by Hutchinson (1959) who, with a reversal of the sequence (bisexual genera first), published essentially an English translation of Hooker's latin. Engler (1905-1920), in his monumental 'Das Pflanzenreich', produced his final treatment of the family, including all then known species in nine volumes. This work remains the standard reference for the family as a whole.
Thomas B. Croat Ecology and life forms of Araceae (Buy Back Issue)
 ABSTRACT: The most interesting aspect of the family's ecology is the diversity of adaptive life forms. These range from submerged to free-floating, and emergent aquatics to terrestrial plants and to epilithic or epiphytic forms which may be true epiphytes or hemiepiphytic (growing on trees but rooted in soil). Hemiepiphytism is diverse itself, with some species beginning their lives as terrestrial seedlings, then growing skototropically (toward darkness) until they arrive at the nearest suitable tree ( usually a relatively large one which casts a darker shadow) where a physiological change takes place allowing them to grow toward light (Strong & Ray, 1975). They grow as appressed epiphytes on trees or as vines in the canopy. Others begin their lives as true epiphytes, some reconverting to hemiepiphytes by producing long, dangling roots contacting the forest floor below.
Thomas B. Croat Ecology and life forms of Araceae: A follow-up
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 ABSTRACT: This paper deals with new information concerning the ecology and life forms of Araceae that has come to light since the publication of "Ecology and Life Forms of Araceae," in Aroideana Volume 11 (3-4). 1988 (990). Also included are corrected errors in that article.
Gitte Peterson Chromosome numbers of the genera Araceae (Buy)
 ABSTRACT: An overview of the chromosome numbers of the genera of Araceae is given.
Thomas B. Croat Taxonomic status of neotropical aroids (Buy)
 ABSTRACT: While the Paleotropics has more genera than the Neotropics (60 versus 36) the latter area contains roughly twothirds the species of the world's Araceae. Our level of knowledge of the systematics of the neotropical Araceae varies greatly from area to area, owing largely to recent revisionary work or to the interest and area concentrated on by particular workers.
Thomas B. Croat History and current status of systemic research with Araceae (Buy Back Issue)
 ABSTRACT: This paper will cover all systematic and floristic work that deals with Araceae which is known to me. It will not, in general, deal with agronomic papers on Araceae such as the rich literature on taro and its cultivation, nor will it deal with smaller papers of a technical nature or those dealing with pollination biology. It will include review papers on technical subjects and all works, regardless of their nature, of current aroid researchers. It is hoped that other reviews will be forthcoming which will cover separately the technical papers dealing with anatomy, cytology, physiology, palenology, and other similar areas and that still another review will be published on the subject of pollination biology of Araceae and the rich literature dealing with thermogenesis.
Josef Bogner, Eduardo G. Gonçalves The genus Gearum N. E. Br. (Araceae: Tribe Spathicarpeae) (Buy)
 ABSTRACT: Gearum brasiliense N. E. Br. was first collected in October 1828 by W. J. Burchell. N. E.Brown(1882) gave a very accurate description of the inflorescence and flower structure, although Burchell's specimen was heavily damaged by insect feeding, but until recently this monotypic genus remained incompletely known, due to lack of leaf material definitely attributable to Gearum. Although a second collection of Gearum was made by Burchell (Burchell 8598-leaves only), around the time ofthe holotype gathering, it was not until 150 years later that a third collection was made by Alfeu de Araujo Dias (Vias 41), a Brazilian botanist working for the Projeto RADAMBRASIL.
Eduardo G. Gonçalves, A. C. D. Maia New evidence of pollination in Gearum brasiliense (Araceae -- Spathicarpeae) (Buy)
 ABSTRACT: New evidence is presented to suggest that the monotypic genus Gearum (Araceae) may be truly cantharophilous, not myophilous as suggested before. The credible pollinators in Gearnm brasiliense are large scarab beetles of the species Cyclocepbala celata, which were collected inside floral chambers of inflorescences between the female and the male phases. Along with the direct observations of insects within inflorescences, general floral morphology and construction are used as indirect evidences of a cantharophily pollination syndrome in this aroid genus.
Josef Bogner The chromosome numbers of the aroid genera: An additional note
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 ABSTRACT: Last year we (Bogner & Petersen, 2007) published a list of the chromosome numbers of the aroid genera, but one genus, Croatiella E. G. Gons,:.(Gons,:alves, 2005), was lacking, because earlier living plants disappeared from cultivation. As expected, Croatiella integrifolia has also a chromosome number of 2n = 34, x = 17