Norih American Cyperacca. 343 



Oes. I have not had an opportunity of examining this plant. 

 If it really belongs to the tribe Scirpese, its place is next to 

 MulachoclKEte, N. ah E., which differs in the scales of the pe- 

 rigynium being 5 or 6, instead of 2. It may, however, be 

 more nearly related to the Hypolytreae, if not a species of Hy- 

 polytrum* itself. 



f f Without a Ptrigijnium. 



12. FIMBRISTYLIS, Vahl. 



Scales imbricated on all sides. Bristles 0. Style 

 compressed, 2-cleft, bulbous at the base, deciduous, often ci- 

 liate on the margin. — Habit of Scirpus. 



Fimbristylis, Vahl, cmim. 2. p. 285; R. Broirn, jrodr. 1. p. 

 225 ; Rccm. ^'Schvlt. gen. 175 ; Lestih. ess.fam. Cyp. p. 39. no. 

 45 ; N. ah Escnb. in Wight's contrih. p. 70, and in Linnaa, 

 9. p. 290; Nutt. gen. 1. p. 33. 



* The genus Hypolytrum, as characterized by Eichard, included also 

 ■what is now called Lipocarpha. Indeed two of his three species belong 

 to the latter genus ; so that the name Hypolytrum ought to have been 

 applied to the species in which the squamulsB are parallel to the scale. 

 Hypafilyptum of Vahl {Eniim. 2. p. 283f) appears to be identical with 

 Richard's genus, including both Hypolytrum and Lipocarpha. Hypae- 

 lyptum of R. Broxvn, p odr. 1. p. 219, (who quf tes Vahl, 1. c.) is pre- 

 cisely Lipocarpha of Nees ab Esenbeck, and this most profound botanist 

 expressly states that Schanus nemorum, Vahl, Scirpus anomalus, Retz., 

 S. bromelifsfolius, Rudoe, and ofher unpublished species, having the 

 squanml?e (" valvulfe perianthii") lateral, with a very different habit from 

 Hypffilyptum, constitute a proper genus. This genus is the present 

 Hypolytrum, from which we must exclude, however, S. brojnelierfolins, 

 Rudge, which is the Dijylasia Kerateefolia, Rich. Beera of P. de 

 Beavois, (in Lestih. ess. fain. Cyp. p. 43. no. 57) seems to be scarcely 

 distinct from Hypolytrum of N. ab Esenb. Indeed the two genera are 

 united by the latter botanist. 



f " Hypffilyptum, Fa/;/, qui in Kerb. Richardianonomenhaud recta transcripsit." 



LesHb. e»s. 



Vol. III. 44 



