|
(Last Modified On 8/1/2013)
|
|
|
|
(Last Modified On 8/1/2013)
|
|
Genus
|
Psiguria Neck. ex Arn.
|
|
PlaceOfPublication
|
J. Bot. (Hooker) 274 3: 247. 1841.
|
|
Note
|
LECTOTYPE: P. pedata (L.) R.A. Howard.
|
|
Synonym
|
Anguria Jacq., Enum. P]. Carib. 9. 1760; non Mill., 1754. LECTOTYPE: A. pedata (L.) Jacq.
|
|
Description
|
Dioecious or rarely monoecious, tendriled vines or lianas; stems 5- to 10- sulcate. Leaves petiolate, entire, lobate, or 3- to 5-foliolate; tendrils simple. Staminate flowers clustered at the end of long peduncles; calyx elongate cylin- dric, 5-lobate; corolla rotate, 5-lobate; stamens 2, included, free, the filaments short, the anthers linear or oblong, dorsifixed, bilocular, the theca straight, rarely replicate at the base. Pistillate flowers 1-3, short pedunculate; calyx and corolla as in the staminate flowers; ovary ovoid, 2-carpellate, the ovules numerous, hori- zontal, the styles connate on most of their length, the stigmas 2-branched; sta- minodia 2, minute. Fruits indehiscent, ovoid to oblong; seeds numerous, oblong, compressed.
|
|
Habit
|
vines or lianas
|
|
Distribution
|
Psiguria is a genus of 15-30 species restricted to the American tropics.
|
|
Note
|
It is closely allied to Dieudonnaea, Gurania, and Guraniopsis and may eventually prove to be congeneric with one or more of these. I am following Howard (J. Arnold Arb. 54: 453-470. 1973) in accepting Psi- guria over the well-known generic name Anguria. Many more species in Anguria need to be transferred to Psiguria, but must await further study of this and the allied genera.
|
|
Key
|
a. Calyx tube cylindrical, green speckled; calyx lobes triangular, conspicuously darker green than the tube ...... 4. P. warscewiczii aa. Calyx tube flask-shaped, solid green; calyx lobes subulate or lanceolate, the same color as the tube. b. Leaves coriaceous ...... 1. P. bignoniacea bb. Leaves membranaceous or chartaceous. c. Leaves simple, margins entire or sinuate undulate ...... 2. P. longipedunculata cc. Leaves 3- to 5-foliolate or deeply 3- to 7-lobate ...... 3. P. pedata
|
|
Tag
|
|
|
|
Project Name
|
|
Tag
|
|
|
|