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Berry color of Colocasia esculenta
From: "Dr. Tom Croat" tcroat at LEHMANN.MOBOT.ORG> on 2000.01.03 at 14:43:43(3992)|
I prepared a description of Colocasia esculenta for the Flora of
Veracruz treatment of the Araceae but no collection that I saw, nor any
literature that I could find had any mention of berry color. I rarely see
it in flower and it may never get pollinated in these escaped from
cultivation areas where I have seen it. So if anyone has seen it with
berries I would appreciate knowing the berry color. Also if anyone sees
anything wrong with the description in other regards I would appreciate
hearing back from you. Another point which I would like to clear up is
the number of inflorescences that it bears per axil. I have one
observation that I made where there was only one inflorescence per leaf
axil but I am sure that it probably produces more.
Colocasia esculenta (L.) Schott, in Schott & Endlicher, Melet.|
Bot. 18. 1832. Arum esculentum L., Sp. Pl. 965. 1753.
Large perennial herb 1-2.5 m tall; stem a cormose or rarely rhizomatous
subglobular to oblongoid caudex, mostly 15-18 cm diam, with close leaf
scars around its circumference and with smaller secondary subglobular
cormules in the lower part of stem; roots arising from the lower portion
of stem; leaves arising in whorls from apex of stem; petioles (0.7)1-2.1 m
long, glaucescent, sheathed 1/3 to about midway, the free part subterete,
obtusely flattened adaxially; blades conspicuously peltate, ovate-cordate
to ovate-sagittate, 25-85 cm long, 20-60 cm wide, acuminate at apex;
posterior lobes fused to about midway, the lobes rounded; major veins
concolorous; midrib flat above, thickly convex and paler below; primary
lateral veins 3-6(8) pair, arising at 50-70 angle; basal veins 5-8 pair,
the 1st pair free to the base, the remainder variously coalesced into a
prominent more or less straight posterior rib which extends to near the
end of the posterior lobes; surfaces matte & glabrous, upper surface
medium green, sometimes weakly subvelvety, lower surface moderately paler,
glaucescent. Inflorescences with peduncle 15-30 cm long; spathe 20-40 cm
long, the tube 3-5 cm long, green on both surfaces; blades 15-30 cm long,
pale sulfur-yellow to orange-yellow outside, slightly paler inside,
oblong-lanceolate, arching away from the spadix or reflexed, twisted
apically; spadix 6-14 cm long; pistils greenish, ovules unilocular with a
single sessile stigma; ovules 37-67 per locule on 2 to 4 parietal
placentas with sterile pistillate flowers scattered among the fertile
pistils, these lacking stigma and style; staminate spadix cream-yellow,
sterile staminate section of spadix markedly constricted, 2-5 cm long;
fertile staminate portion about as thick as the pistillate portion,
staminodia with 2-6 linear anthers, thecae dehiscent by terminal pores;
terminal sterile appendage creamy white, many times longer than the
fertile portion of spadix. Berries color?; seeds 1.0-1.5 mm long, 0.7-1.0
mm diam, ovate, pale yellow, longitudinaly ridged, bearing a conspicuous
hilum at one end and a delicate, translucent funiculus; chromosome number
Native to some unknown area of Asia but now widely cultivated in tropics
and subtropics of both hemispheres.
From: "Julius Boos" ju-bo at email.msn.com> on 2000.01.04 at 02:01:47(3993)|
See Aroideana Vol. 8, No. 3, pg. 83---"Ripe taro fruits are yellow, small".
I have seen about three, maybe more inflorescences per leaf axil, and I will
keep my eyes open around where I work next summer, there are escaped
populations that ferquently bloom.
You describe one of the forms that do produce a tuber/tubers, but many do
not, and they only produce these long, thin stolons. There is also a
tuberous form which has started to turn up here in Florida imported from
Jamaica (I believe it is the same as the rare one we have in T`dad that we
refer to as 'Biche dasheen' [Biche is a small Eastern Village] or 'blue
metal', as the tuber cooks to a blue-gray color). It has tubers that look
like portions of a smooth tree trunk, and are sometimes 'forked' so that the
plant would have had two tops on one lower tuber, quite different from the
globular tubers with prominent circular leaf scars that are more common in
Super Markets around here, and which cook to a white color and are inferior
eating to the 'blue metal' tubers.
There is some good information on wild populations of Colocasia in the most
recent issue of Aroideana which has just arrived here, an excellent issue by
Hope this information is of help.
From: Eric Simpson crat at cris.com> on 2000.01.11 at 07:11:49(3997)|
I have two 4 year old plants that I originally received as C. esculenta. They
are tuberous rather than bulbous. Last year these were extremely floriferous
(at least as far as these plants have been) having at least 15 blooms per
plant. As I have read that C. escuelenta was not good about fertilizing, the
pollen was collected from each flower as available. By storing the pollen dry
until another bloom just opened, mixing the pollen with water and pouring
through the bloom, I was able to get about 100% fertilization. The berries I
got were red and are now awaiting planting. I didn't send the seeds to the AEG
exhange as I'm not 100% sure these are C. esculenta anymore.
Any way to determine if this really is C. esculenta?
Julius Boos wrote:
> -----Original Message-----
> From: Dr. Tom Croat
> To: Multiple recipients of list AROID-L
> Date: Monday, January 03, 2000 5:43 PM
> Subject: Berry color of Colocasia esculenta
> Dear Tom,
> See Aroideana Vol. 8, No. 3, pg. 83---"Ripe taro fruits are yellow, small".
> I have seen about three, maybe more inflorescences per leaf axil, and I will
> keep my eyes open around where I work next summer, there are escaped
> populations that ferquently bloom.
> You describe one of the forms that do produce a tuber/tubers, but many do
> not, and they only produce these long, thin stolons. There is also a
> tuberous form which has started to turn up here in Florida imported from
> Jamaica (I believe it is the same as the rare one we have in T`dad that we
> refer to as 'Biche dasheen' [Biche is a small Eastern Village] or 'blue
> metal', as the tuber cooks to a blue-gray color). It has tubers that look
> like portions of a smooth tree trunk, and are sometimes 'forked' so that the
> plant would have had two tops on one lower tuber, quite different from the
> globular tubers with prominent circular leaf scars that are more common in
> Super Markets around here, and which cook to a white color and are inferior
> eating to the 'blue metal' tubers.
> There is some good information on wild populations of Colocasia in the most
> recent issue of Aroideana which has just arrived here, an excellent issue by
> the way!!
> Hope this information is of help.
From: "Julius Boos" ju-bo at email.msn.com> on 2000.01.12 at 11:54:40(3998)|
If poss. check on the Aroid I.D. page, there is/was good photos of a
Colocasia esculenta plant (leaves were atypical in having a beautiful yellow
area in the center) and inflorescence, if not post a pic. of your plant`s
leaves and if poss. a bloom and we will be able to tell.
It may well be that Colocasia has both yellow AND red berries. I have seen
red berries in several Alocasia sps..
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