|
(Last Modified On 9/4/2013)
|
|
|
|
(Last Modified On 9/4/2013)
|
|
Genus
|
Diodia L.
|
|
PlaceOfPublication
|
Sp. P1. 1: 104. 1753
|
|
Note
|
TYPE: D. virginiana L.
|
|
Description
|
Annual or perennial herbs, the stems terete or 4-angled. Leaves opposite or seemingly verticillate, sessile or short petiolate; stipules connate, united with the petioles, the sheath filiform setose, the processes often ciliate. Inflorescences axillary or in terminal spikes, the capitate heads borne in the axils of reduced leaves. Flowers sessile, usually 4-merous, the calycine tube 2-6-lobed, often with small interdental glands; corolla infundibuliform to hippocrateriform, the lobes 4-6; stamens 4-6, the anthers exserted, dorsifixed, the filaments attached at the mouth; ovary mostly 2-celled, the ovules solitary, adnate to the septum in the middle. Fruits partly superior, the 2 cocci indehiscent, the endocarp thick and woody, smooth or costate, the ventral face plane, the endosperm relatively re- mote from the hilar ridge.
|
|
Habit
|
herbs
|
|
Distribution
|
occurs in Mexico, Central America, the Antilles, and South America.
|
|
Note
|
Some species are found in the United States and in Africa. The genus has about 50 species.
|
|
Reference
|
Steyermark, J. 1972. The Botany of the Guayana Highland-Part IX. Mem. N.Y. Bot. Garden 23: 788-805.
|
|
Key
|
a. Leaves 1.2-3.0 cm wide. b. Inflorescences flagelliform in appearance and with obviously reduced leaves or bracts; leaves with lateral veins not deeply immersed above ...... 1. D. denudata bb. Inflorescences not flagelliform, not with obviously reduced leaves or bracts; leaves with lateral veins obviously immersed beneath ...... 2. D. sarmentosa aa. Leaves 0.2-0.4(-0.8) cm wide ...... 3. D. teres
|
|
Tag
|
|
|
|
Project Name
|
|
Tag
|
|
|
|