TRIANDRIA MONOGYNIA, 61 



i 



I am unacquainted with tliis species. Michaux adds that the leaves 

 are narrow and flat; the sjnkes few and glabrous; and the bristles a 

 little hispid. 



Iniiabits Carolina. Mich. 



9. Glomerata. 



R. spicis corymboso- Spikes clustered in co- 



fasciculatis, remotissimis, rymbs, very distant, by 



gemiiiatis; culrno obtiis- pairs; stem obtusely aii- 



augulo,; foliis linearibus. gledj leaves linear. 

 Vahl. 2. p. 234. 



Sp. pi. 1. p. 266. Pursh, 1. p. 48. Walt. p. 69? Clayton, p. ^. 

 No. 585. J ' i- 



r 



This-spiecies has descended to us from Clayton, but is to me still 

 obscure. He remarks that the heads are composed of ten or 

 more dusky, acuminate spikes, sitting on long erect peduncles that 

 grow from the joints, stem geniculate, leaf 3 angled. 



This description nearly applies to the R. capltellata of this Sketch, 

 but the twin peduncles, which are mentioned by Gronovius, thouo-U 

 not by Clayton, 1 have not noticed in any of our species of Rhyncho- 



Grows in Carolina. Pursh, on the authority of Walter. 



10. Capitellata. 



R. caulc triquetro; flo- 

 libus in capitulis axillari- 

 bus; seminc obloncro-obo- 



Stem 3 angled ; 

 floweis in axillary heads; 

 seed oblong, obovate, 

 vato, nmcronato; setulis [pointed with a subulate 



^^^^*i^- tubercle ; bristles stab- 



rous. 



Pursh, 1. p. 49. 



Schffinus capitellatus, Mich. 1. p. 36. 



,f pf! '*! ":; inches high. Leaves nearly setaceous, shorter than the 



lll^ ' 1 f ^^ ^.^^^ ''^^^'^- ^^"^-ers in spherical heads on footstalks 

 scarcely lon-er than the sheaths. Seed compressed, nearly cuneiform, 

 crm\ ned with a subulate tubercle. " ' ^ * 



grows in wet places, generally in poor soils. 



* lowers May— September. 



II. Inexpansa. 



R. culmo obsolete tri- [ Stem obscurely S ang- 

 <liietro , paiiiculis remo- j led ,• panicles remote, 



