52 TRIANDRIA— MONOGYNIA. Rhynchospora. 



roundish, small, with several rough bristles, shorter than 

 its glume, beneath. Style capillary, with a broad base, 

 which remains, forming a hard, conical, compressed, pale 

 beak to the convex, otherwise obtuse, seed. 

 Stems erect, simple, leafy, triangular. Leaves keeled, with 

 entire sheaths. Spikes in corymbose, stalked heads, FL 

 sometimes partly monoecious, according to Vahl. 



1. R. alba. White Beak-rush. 



Heads abrupt. Stamens two. Leaves tapering. Numerous 

 bristles at the base of the seed. 



R. alba. Vahl Enum. v.2. 236. 



Schoenus albus. Linn. Sp. PL 65. Willd. v. 1 . 267. FL Br. 46. 



EngL Bot. V. 14. t 985. Hook. Scot. 16. Don H. Br. 53. FL 



Dan. t. 320, bad. 

 Scirpusn. 1341. HalL Hist. v.2. 179. 

 Cyperus minor palustiis hirsutus, paniculis albis paleaceis. Rail 



Sijn. 427. Moris, v. 3. 239. secL 8. L 9. /. 39. 

 Gramen junceum leucanthemum. Ger. Em. 30.* 

 G. cyperoides palustre leucanthemum. Scheuchz. Agr. 503. t.W. 



Gramini luzulae accedens glabrum, in palustribus proveniens, pa- 

 niculatum. Pluk. Phyt. L 34. f. \l. 



On turfy bogs, most frequent in mountainous countries. 



Perennial. July, Aug. 



Root moderately creeping. Whole plant smooth and slender, 

 from 6 to 12 inches high. Leaves erect, shorter under the flower- 

 stalks. Spikes slender, very white when recent ; pale reddish 

 brown when old or dry. Stigm. 2. -Seed lenticular, greyish, with 

 a flat beak, one third its own length, and about 10 brown rough 

 bristles from the receptacle, rising above it. 



2. ^.Jiisca, Brown Beak-rush. 



Heads ovate-oblong. Stamens three. Leaves thread-shaped. 

 Three bristles at the base of the seed. 



R. alba /3. Vahl Enum. v. 2. 236. 



Schoenus fuscus. Linn. Sp. PL 1664. Willd. v. 1. 262. EngL BoL 



V. 22. ^.1575. Don H. Br. 203. Ehrh. Beitr. v. 4. 154. Phy- 



toph. n. 1. Roth Germ. v. 2. 48. Schrad. Germ. v.\. 110. Turn. 



in BoL Guide 754. FL Dan. t. 1562. 

 Cyperus minor angustifolius palustris, capitulis fuscis paleaceis. 



Moris. V.3. 239. secL 8. L 1 1./.40, bad. DHL inRaiiSyn. 427. 



In bogs, rare. 



On Cromlyn bog, near Swansea. Mr. E. Forster. Near Killarney, 

 Ireland, Mr. Mackay. Originally gathered near the isle of 



