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II CLASS. MESOGYNIA.— THE MESOGYNES. 



94. Lycopus angusiif alius. Leaves sessile, elongate, linear-lanceolate, acumi- 

 nate, remote, serrate in the middle ; base dilatated ; whorls pauciflore ; bracteas 

 and teeth of the calyx subulate ; corolla equal to the calyx; stamina hardly ex- 

 erted. — Found in western Kentucky, blossoming in August ; size one foot. Pe- 

 rennial. 



95. Gentiana s^pentaria. Stem cylindrical flexuose; leaves cuneate or obo- 

 vate-oblong, obtuse, nealy trinerve, undulate, smooth ; flowers fasciculate, ses- 

 sile ; bracteas sub-petiolate, lanceolate, acute ; calyx campanulate, shorter than 

 half of the corolla, pentagone, sinusses membranaceous, truncate ; sepals linear, 

 acute, foliaceous, carinate ; corolla tubulose, five toothed; teeth erect, elongate, 

 obtuse , notched ; sinusses unequally toothed. — Next to G. ochroleuca and G. ca- 

 tesbei ; flowers straw colour veined with green ; flve free stamina ; filaments tri- 

 gone ; anthers white, obtusely sagittated. It grows in Indiana where it roots are 

 supposed to stupif y the venomous snakes and cure their bite. 



XXI. N. G. Ilysanthes. Calyx five parted, sub-equal ebracteate ; caroUa tu- 

 bulose, bilabiate ; upper lip erect, short, bidentate, sinus obtuse ; lower lip tri- 

 lobe, sinusses acute ; lobes nearly equal, rounded, entire, concave. Stamina two 

 fertile under the upper lip ; anthers unilocular ; two sterile filaments under the 

 lower lip. Ovary oblong ; style compressed above ; stigma bilamellate. Capsul 

 oblong-cylindrical, unilocular, bivalve, myriosperme ; receptacle central, cylin- 

 drical. — This genus differs from Gratiola by the calix, carolla and capsul. The 

 name means mud flower. Habit of Gratiola and Lindernia ; leaves opposite ses- 

 sile ; flowers axillary. 



96. Ilysanthes riparia. Branched, smooth, divaricate or decumbent ; leaves 

 ov^te-oblong, obtuse, nearly five nerved, remote toothed, thickish ; peduncles 

 alternate upright, as long as the leaves ; sepals of the calyx subulate, shorter than 

 the capsul. — It grows on the overflowed banks and islands of the Ohio and tribu- 

 tary streams, in the mud or even in the water. Stems quadrangular ; flowers 

 pale blue, lower lip marginated with white. It blossoms in July and August. 

 Annual. A variety has broader ovate leaves, hardly toothed. 



97. Cuscuta paradoxa. Stemless, parasite verticillate ; whorls capitate and 

 dense ; flowers sessile ; calix membranaceous, five parted ; sepals embricate, o- 

 vate, lanceolate ; carolla tubulose, quadrifid, equal to the calix ; sepals lanceolate, 

 acute ; four stamina, no appendages ; two long styles ; stigmas capitate. — In the 

 barrens of Indiana and Illinois on the stem of Vernonia A very singular plant ; 

 its stems are filiform and very slender in their youth , but dry and fade while the 

 plant blossoms. Flowers white; blossoming in June. Annual. 



98. Cuscuta acaulis. Stemless, parasite, glomerate, compact, amplectent, 

 dense ; flowers sessile ; calyx membranaceous, five parted ; sepals ovate, acute ; 

 corolla campanulate, urceolate, S fid ; sepals short, ovate, acute ; stamina five, 

 no appendages ; two long styles ; stigma capitate. — Very similar to the forego- 

 ing. Is it only a variety of it ? Found on Eupatorium, Spirea, &c. in the barrens of 

 Kentucky, blossoming in August ; flowers white, seldom whorled ; but in large 

 amplexicaule glomerations. 



99. Gerardia lemgata. Smooth ; leaves nearly petiolate, lanceolate, acute, 

 entire, pale beneath ; flowers nearly spiked, sub-sessile ; bracteas sessile, ovate 

 lanceolate ; cal)rx campanulate, semi-quinquefid ; divisions obtuse — An interme- 

 diate species between G. fava or villosa and G. glauca or quercifolia, but very 

 distinct from both. It gmws on the knob hills of Kentucky, the Cumberland 

 mountains and the Alleghany. It rises about two feet. Stem faintly quadrangular, 

 purplish, simple or branched. Bracteas small ; flowers yellow, large, similar to 

 those of C/?ara, and blossoming in July and August. Perennial. 



Ill CLASS. ENDOGYNIA.— THE ENDOGYNES. 



100. Sambucus humilis. Perennial; stem herbaceous, flexuose, few leaved; 

 leaves five foliolate ; folioles nearly sessile, ovate-elliptical, thin, serrate, acumi- 

 nate, terminal one larger and petiolate ; cyme terminal quinquefid ; two short 

 binate and lanceolate bracteas. — On the banks of the Ohio in Virginia ; it blos- 

 soms in June ; stem only one foot high ; leaves large ; flowers white. It will re- 

 present in America the 5. Ebulus 



101. Cornus obliqua. Shrubby; branches nearly cylindrical, semirugose dicho- 



