Elodea. HYPERICACEiE. 167 



34. H. anagalloides (Cham. & Schlecht.) : stem herbaceous, procumbent 

 and creeping; leaves ovate, obtuse, 5-7-nerved, very minutely iiellucid-punc- 

 tate; cyme terminal, leafy, few-flowered, not glandulose; sepals obovate, 



shorter than the corolla ; capsule ; stamens 15-20, distinct ; styles 3, 



distinct. Cham. <^ Schlecht. in Limia'a, 3. p. 127. 



St. Francisco, California.— Leaves membranaceous, 5-7-nerved ; the larg- 

 est about 6 lines long ; the lower ones much smaller. Dichotomal flowers pe- 

 duncled. Ckam. <f .Sc/i/ec'i^.— Allied to H. humifusum, according to the 

 authors cited ; and apparently also to H. mutiium. 



35. //. aciitifotmm. (Ell.) : stem herbaceous?, branching, glabrous ; leaves 

 narrowly lanceolate, acute; panicle many-flowered; capsules scarcely longer 

 than the calyx. Ell. sk. 2. p. 26. 



Milledgeville, Georgia, Dr. fiVii/Zrin.— Resembles most the H . Canadense, 

 but larger in every rc-pecl: it differs also in its acute leaves, proportionally 

 short capsule, and much more compact panicle. Elliott. 



H. rostrtUvm, Raf. fl. Ludov. 

 H. fulgidum, Raf. fl. Ludov. 



3. ELODEA. Adans. ; Nutt. gen. 2. p. 17 ; Spach, in ann. sci. nat. 

 (ser. 2.) 5. p. 165, not of Michx. 



Triadenium, Baf. Species of Hypericum, Linn. <^c. 



Sepals 5, equal, somewhat united at the base. Petals 5. deciduous, equila- 

 teral. Stamens 9 (rarely 12-15), triadelphous ; the parcels alternating with 

 3 hypogynous glands. Styles 3, distinct. Capsule oblong, membranaceous, 

 3-celled : the placentae somewhat cohering in the axis, at length separating 

 from the valves. — Perennial glabrous or slightly glaucous herbs. Leaves 

 membranaceous, pellucid-punctate, and often with a few black dots (the ax- 

 ils never leafy). Cymules few-flowered, terminal and in the axils of the 

 upper leaves, pedunculate or subsessile : flowers dull orange-purple, 



Spach has very well characterized this genus ; but we have been obliged to re- 

 duce his seven species to two. 



-^ 1. E. Virginica (Nuit.) : leaves sessile, clasping ; stamens united below 

 the middle.— ,¥««. .' gen. 2. p. 17 ; Ell. sk. 2. p. 33 ; Spach, I.e. E. cam- 

 panulata, Pitrsh, Jl. 2. p. 379. E. Drummondii & Fraseri, Spach, I. c. 

 Hypericum Virginicum, Linn. ; Michx. fl. 2. p. 81 ; Andr. hot. rep. t. 552; 

 DC. prodr. 1. p. 546 ; Bigel. fl. Bost. p. 281 ; Darlingt. fl. Cest. p. 322. 

 H. campanulatum, Walt. Car. p. 191. 



Swamps, Canada to Florida! and Louisiana! July-Aug.— Plant 1-2 

 feet high, often of a puri)lish hue. Stem nearly terete, branching. Leaves 

 oblong, 1-2 inches or a little more in length, somewhat glaucous underneath. 

 Axillary cymes mostly about 3-flowered ; the terminal one often compouiid. 

 Petals obovate-oblong, nearly twice the length of the calyx, marked with 

 reddish veins. Stamens rarely 12 or more, always triadelphous ; the fila- 

 ments seldom united more than one-third of their length, shorter than the pe- 

 tals. Glands ovate, orange, secreting a copious sweetish fluid. Capsule ob- 

 scurely triangular, nearly twice the length of the calyx when mature, rather 

 acute. Seeds oblong, very numerous. 



