[ IS ] 



109. Peramihus hirtus. Bristly ; stem angular, flexuose and nearly dichotome ; 

 leaves semi-amplexicaule, lanceolate, acuminate, serrate in the middle, the lower 

 ones ovate-lanceolate ; flowers somewhat corymbose, nearly sessile ; folioles of 

 the perianthe linear, lanceolate, hardly aciite ; chaffs ovate-lanceolatei acumi- 

 nate, purplish, as long as the florets ; rays elliptical, notched, hardly longer 

 thm the perianthe — It grows on the hills near Licking river in Kentucky. Stem 

 two or three feet high, covered with stiff white hairs as well as the leaves : it 

 blossoms in August. I called it once Coreo^^w fcVta; rays yellow. Perennial. 



110. Gynema viscida. Partly pubescent and clammy; leaves petiolate, ellip- 

 tical, lanceolate, acuminate at both ends, mucronate, serrate, base entire ; flow- 

 ers corymbose, terminal and axillary, glomerulated ; folioles of the perianthe o- 

 vate-lanceolate, acute, rufous, ciliolate. — A fine plant not uncommon in Kentucky 

 in fields and woods. It belongs to the genus Gynema of my flora ludoviciana. 

 Stem two to three feet high. The whole plant has a very strong balsamic smell. 

 It blossoms in August and September ; flowers pale red. I had formerly called it 

 G. dentata. Biennial. 



IV CLASS. SYMPHOGYNIA.— THE SYMPHOGYNES. 



111. Lobelia nivea. Stem simple, smooth, striated above ; leaves adpressed, 

 cuneate, obtuse, emarginate, ciliolate, slightly rough, glaucous beneath, laterally 

 notched, notches glandular: spike recemose, elongate, slender; bracteoles subu- 

 late ; flowers nodding ; peduncles shorter than the calix ; sepals subulate. — A 

 pretty species, with a very long spike of small snow-white flowers. I found it at 

 the Blue licks in Kentucky, blossoming in July. Perennial. Stem one or two feet 

 high. 



112. Melothria nigra. Stem filiform, angular trailing; leaves roughish, sub- 

 reniform, five lobed, remote, denticulated, middle lobe longer, cirrhes and pe- 

 duncles fasciculated with the leaves ; flowers polygamous, monoical, male, pe- 

 duncles uniflore, the males multiflore, berries globular ovate, black, shining. — It 

 grows in the valley of the Kentucky river near Estill ; Stem trailing on the 

 ground from three to ten feet ; leaves and flowers small, these yellow, blossom- 

 ing in August. It offers many varieties, all distinct from M. pendula. An- 

 nual. 



113. Ludwigia tuberosa. Roots tuberose, geminate, fusiform ; stem simple, 

 flexuose, angular ; leaves alternate, sessile, smooth, entire, ovate-oblong, acute 

 at both ends ; flowers terminal, one to three pedunculated ; capsuls 4 gone, ob- 

 pileate, short, truncate. — It grows on the banks of the Ohio in Virginia ; stem on- 

 ly six inches high, it blossoms in September. Perennial. 



114. Oenothera pilosella. Pilose ; stem simple, flexuose, pauciflore ,; radical 

 leaves petiolate ovate, obtuse, toothed, caulinar, sessile, ovate-oblong, acute, 

 entire ; flowers terminal, sessile ; tube of the calyx shorter than the limb, which 

 is four toothed, split laterally ; petals obcordate, as long as the calix ; capsul ob- 

 long, 4 gone, venose. — Discovered in Indiana near Evansville. Biennial. Six 

 inches high Flowers yellow, blossoming in August. 



lis. Cactus humifusus. Articulated ; articles diffuse, procumbent, obovate, 

 flat; spinules very minute, rufescent ; fruits lateral, scattered, inerme, smooth, 

 ovate, scarlet. — This is the common Cactus of the United States, which has been 

 mistaken for .he C. Opuntia by all our botanists. It grows from New York to 

 Kentucky and Missouri, trailing on the ground from one to fifteen feet ;_ articles 

 two to five inches long ; flowers yellow, an inch ' in diameter ; fruit size of a, 

 plumb, good to eat ; skin very thin and quite smooth ; while in C. opuntia it is 

 thick and spinescent. 



V CLASS. ANGIOGYNIA.— THE ANGIOGYNES. 



116. Habenaria racemosa. Stem flexuose, angular; lower leaves elliptical, ob- 

 tuse, upper ones lanceolate and small ; flowers racemose, pedunculate ; bracteas 

 oblong, lanceolate, longer than the ovary, which is fusiform ; sepals elliptical, 

 oblong, concave, sub-equal ; labellum tripartite : divisions cuneate, flabellate, 

 5 fid, lacerated ; spur shorter than the ovary. — Discovered by Mr- Knevels, 

 near Fishkill. Stem two feet high ; flowers purple, blossoming in August, in an 

 oblong and thick raceme, pretty large. The genus Habenaria of Brown contains 

 all the species of Orchis with two anthers. 



