

FLORA CESTRICA. 



Virtud rs, rcspondi6 Sancho, conoccr esas Yerbas, que segun yo me voy Imagi 

 nando. alirun dia scr& menester usar de esc conocimiento. Cerxantes. 





CLASS I. MOtfAtfDRIA. 



Order 1. jflonogynia. 



[Cyperus inflexus. Eriophorum virginicum. Triandria Monogynia] 



Order 2. Digynia. 



1. OAIJJTRIOHE. L. JSTutt. Gen. 5. 



[Greek, kullos. beauty, and thrix, hair; in allusion to the hair-like stems, or leaves. '' 



Monoicoi sly polygamous: Bracts 2, opposite, incurved, fistular 

 colored. Calyx 0. Corolla Q. Stamjxate Fl. Stamen 1, (rarely 2,) 

 exserted. Pistillate Fl. Ovary 4-lobed. Capsule compressed 4- 

 celled, indehiscent; each cell 1 -seeded. 



Herbaceous, glabrous aquatics : leaves opposite, simple, entire ; flowers axilla- 

 ry, minute. Nat. Orel. 16-1. Lindl. Callitkichinkje. 



1. C. vkhna, L.wxr. intermedia, Torr. Upper leaves spatulatc-obovate, 

 obscurely 3-nerved ; lower ones linear, 1 -nerved, obtuse or emarginate; 

 fruit sessile, lobes obtusely margined. Beck, Bot. p. 123. • 



C. verna. J\[x. Jim. 1. p. 2. Nutt. Gen. I. p. 3. 

 C. intermedia. Willd. Sp. \.p. 29. Per*. Syn. I. p. 6. MuhL Cat aL p. 1. 

 C. heterophylla. Pursh, Am. I. p. 3. Bart. Phil. 1. p. 2. Ell. £>k. I. 

 p. 4. Florul. Cestr.p. 1. 

 C. aquatica. Bigel. Bost. p. 2. 



Verbal Callitriche. Vulgb — Water Chick-weed. Water Starwort* 

 Root annual, fibrous. Stem somewhat compressed, bifistular, one to two feet 

 loner, (varying with the depth of water,) branching from the axils of the leaves, and 

 throwing out from the joints, at right angles with the leaves, one or more white. 

 filiform radicUs, 1 to 4 inches long. Leaves sessile, sem i -ample xi caul, punctate 

 the uppermost ones crowded into a stellated tuft, and floating on the surface o? 

 the water, the submersed ones narrower, the lower ones quite linear. Floicer* 

 monoicous ; staminate and pistillate flowers sometimes solitary, more commonly 

 associated and closely approximated, in the axils of the leaves,— the staminate 

 flower being next the stem, the pistillate exterior, or next the leaf,— and each fur- 

 nished at base with a pair of opposite bracts. Bracts {calyx, of authors,) incurved 

 or somewhat lunate, hollow, membranaceous and white ; those in front, or belonging 

 to the pistillate flower, much smaller. Stamen rather conspicuous ; filament on* 

 fourth of an inch long ; anther didy mous, somewhat 4-lobed, orange-yellow. Ovary 

 tetragonous, 4-lobed ; styles 2, filiform, pellucid, nearly as long as the stamen. 

 Fruit compressed, bisulcate, emarginate or somewhat obcordate, each flatted half 

 or division, consisting of two concrete carpels, margined on the back so as to form a 

 groove between them. Seeds peltate. Lindl. (oblong. Torr.) 

 {lab. Pools and sluggish rivulets: frequent. Fl. April— Sept. Fr. July— Oco. 



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