Hippocratea. RHAMNACE^. 401 



Var. meionandrum, Trelease, n. comb. Stamens 5 to 7 : otherwise very like the 

 type. — G. meionandrum, Koehne, Gartenfl. xliii. 237, f. 52. — S. Colorado, Purpus. 



G. Nevadense, Gray. Usually minutely puberuleut: leaves elliptical, a little longer than 

 in the last, 2 or 3 lines wide, the broad stipuliferous base abrupt : flowers 4-merous : stamens 

 8. — Proc. Am. Acad. xi. 73; Brew. & Wats. Bot. Calif, i. 109. Forsellesia Nevadensis, 

 Greene, 1. c. 206. — Washoe County, Nevada. 



10. HIPPOCRATEA, L. (Named for Hippocrates, the Greek physician 



and naturalist.) — Climbing shrubs with prehensile twigs, opposite crenate ample 



short-petioled deciduous leaves with minute stipules, and flowers in small dichoto- 



mous axillary cymes. — Syst. Nat. ed. 1, & Gen. no. 908 ; Benth. & Hook. Gen. 



1.309; Peyritsch in Mart. Fl. Bras. xi. pt. 1, 127; Baill. Hist. PI. vi. 45 ; 



Losener, 1. c. 226. — Mostly of the tropics of both continents. 



H. OVata, Lam. Climbing to a considerable height : leaves tliin, elliptic-ovate, obtuse or 

 blunt-pointed, glabrous, 1| to 2^ inches long; the petioles 2 or 3 lines long: flowers almost 

 sessile, somewhat rusty -pubescent : valves of capsule 1 finches long, elliptical, obtuse, closely 

 parallel- veined. — 111. i. 100, t. 28; Trelease, 1. c. 357; Losener, 1. c. f. 130, a-c/. — Ever- 

 glades and Keys of Florida. ( W. lud.) 



Order XLII. RHAMNACE^. 



By W. Trelease. 



Woody plants, sometimes spinose or climbing. Leaves alternate or opposite, 

 simple, not lobed, or slightly lobed in some forms of Gondalia, entire, denticulate 

 or serrate, not glandular-punctate (but sometimes with surface glands below), 

 with small or caducous stipules. Flowers in reduced axillary cymes or occasion- 

 ally subspicate or thyrsoid, small, mostly greenish, perfect or occasionally dioecious 

 by abortion (in some species of Rhamnus and Gouania), 4-5-merous, with a con- 

 spicuous disk lining a short calyx-tube and sometimes adnate to the ovary. Calyx- 

 segments valvate, usually cristate down the inner face, often deciduous. Petals 

 distinct, inserted on the calyx near the margin of the disk, or in some genera 

 wanting, short-clawed, hooded or with incurved margins. Stamens as many as 

 and alternate with the calyx-lobes, hence in front of and mostly embraced by the 

 petals when these are present, distinct, inserted at or below the margin of the 

 disk ; anthers .short, versatile, 2-celled, on more or less elongated filaments. 

 Pistil compound, 2-3-celled, or 1 -celled by abortion, sometimes lobed; ovules 

 anatropous, 1 or rarely 2 in each cell ; style evident, terminal, mostly notched or 

 lobed, with lateral stigmas. Fruit drupaceous, sometimes dry at maturity, or 

 septicidally capsular, the cocci or segments 1 -seeded and frecjuently indehiscent ; 

 seeds not arillate, generally with scanty oily albumen; embryo straight (some- 

 what curved in Eeynosia), usually with broad occasionally green cotyledons. — 

 The tribes readily separable, but the genera often scarcely distinguishable by 

 technical characters alone, though usually differing in habit, inflorescence, or 

 venation of leaves. 

 Tkihk I. ZIZYPHEyE. Lobes of calyx deciduous (except in one section of Con- 



dalia) ; disk lining the shallow calyx-tube, nearly or quite free from the ovary. 



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