216 ORDER VII. — CABOMBACE.E. 



Genus IV.— JEFFERSO'XIA. Bart. 8—1. {Twin-leaf) 

 (In honor of Thos. Jefferson.) 



Sepals 4 — 5, fugacious. Petals 8, linear, oblong. Stamens 

 8 ; anthers linear. Ovary obovate ; stigma peltate. Capsule 

 1 -celled, opening by a slit near the summit. Seeds arranged 

 on a broad lateral placenta, in several rows. Rhizoma horizon- 

 tal, throwing up a 1 -flowered scape. 



1. J. dipiiyl'la, (Pers.) Leaves in pairs, glaucous beneath. Stigma 

 with an undulate margin. Pericarp coriaceous. — White. If. May. 

 Mountains. 



There are two varieties of this species ; a, leaves obscurely sinuate or nearly entire, 

 b, leaflets iucisely 5 — 7-lobed. 



Genus V.— PODOPHYLLUM. L. 12—1. {Mandrake, May Apple.) 

 (From the Greek podos, a foot, and phvRon, a leaf.) 



Sepals 3, caducous. Petals obovate, G — 9. Stamens 16-= — 1 8 ; 

 anthers linear. Stigma large, sessile. Capsule indehiscent, 

 fleshy. Seeds numerous, on a lateral placenta. 



1. P. telta'tcm. (L.) Rhizoma horizontal; stem simple, terminated 

 by 2 leaves and 1 flower. Leaves peltate, 6 — 7-parted ; lobes toothed 

 or cleft al the apex. Flowers arising from between (he leaves, large, 

 iux], ling. — White, li- May. Common. 12 — 15 inches. 



The root of the Podophyllum is an important medicine. It is among the most pow- 

 erful cathartics, and is aaJd to resemble Jalap in its operations, and baa been used as 

 a sabstitnte for that article in connection with calomel In bilious complaints it is 

 said to act very favorably. In minute doses, it produces relief from distressing coughs 

 in consumption and catarrh. Full dose, 20 grains of powdered root. 



Grams VI— CROOMIA. T. & G. 4—1. 



(In honor of the late II. B. Croom of Florida.) 



Sepals 4, broadly oval. Petals none. Stamens 4, opposite 

 the sepals. Ovary globose-ovate, with 4 — 6 suspended ovules. 

 Fruit ovate, compressed. Seeds 1 — 2. Peduncles axillary, 

 2 — 3-flowered ; flowers small. 



C. pa! en i.o'itA, (T. & Gr.) An herbaceous plant, throwing up sev- 

 eral simple stems, sheathed at the base. Leaves oblong-ovate, cor- 

 date at the base, entire, 5 — 9-ribbed, crowded at the summit of the 

 stem. [Oisampelos pauciflora, Nu't. Anonymous diseoroides, Croom.) 

 — H. Greenish white and purplish. Middle Flor. S — 12 inches. 



Order VIL— CABOMBA'CEjE. Rich. (Water-shield Family) 



Sepals -1 — 3, petaloid. Petals '2 — 8, alternate with the sepals. 



Stimuli* 6—18 —36, hypogynoUS ; anthers innate. Ovarii* 

 2 — 18. Carpel 1 — 2-seeded, terminated by the permanent 

 style. Seeds orthotropous, globular, pendulous. Embryo mi- 

 nute; albumen fleshy, with the embryo at its base. Plana 



