HORTUS GRAMINEUS WOBURNENSIS. 47 



NARDUS stricta, per. upright mat-grass, indig. Flowers in June 

 and July. E. Bot. 290. Hort. Gram. fo. 171. 

 Jiliformis, ann. slender mat-grass, nat. Portugal. Flowers in 



June. 

 aristata, ann. See Rottboellia monaudria. 

 Thom&a, ann. imbricated, nat. of Malabar. Smith Linn. Soc. 

 Trans, i. 116. 

 ORYZOPSIS. Spurious rice. Generic character : calyXj 2-valved, 

 1-flowered; husks membranaceous, coriaceous, hard, a little 

 longer than the corolla; corolla 2-valved, inferior husk with 

 a villose apex, awn-jointed, superior valve entire; nectary, 

 2 appendages the length of the germen ; style simple ; panicle 

 rather simple, loose. Linn. Syst. Veg. ii. 10. 

 asperifolia, rough-leaved spurious rice, nat. of the mountainous 

 tracts near Quebec. Richd. Mich. Fl. Bor. Amer. i. 51. 

 t. 9. R. F. C. 

 ERIOPHORUM.* Cotton-grass. Generic character: calyx 

 1 valve, I -lowered ', Jlowers in an imbricated spike, exterior 

 flower generally barren. Corolla, wanting, if the calyx valve 

 be not considered such. Seed three-cornered, furnished with 

 downy hairs. 

 alpinum, per. alpine cotton-grass, indig. Flowers in April and 



May. E. Bot. 311. Sra. E. Fl. 69. 

 vaginatum, per. sheathed cotton-grass, indig. Flowers in April 



and June. E. Bot. 873. Hort. Gram. Fo. 251. 

 capitatum, per. headed cotton-grass, indig. Flowers in June and 



July. E. Bot. 2387. Sm. E. Fl. 66. 

 gracile, per. three-cornered or slender cotton-grass ; indig. 

 Sm. Engl. Fl. p. 69. Flowers in May. Flo. Ger. i. 152. 

 E. triquetrum. 

 angustifoUum, per. narrow-leaved cotton-grass, indig. April and 

 May. Sm. Engl. Fl. 69. E. Bot. 564. E. Polystachion. 

 Curt. Hort. Gram. Fo. 249. 



• The genus Eriophorum belongs to the natural family of Cyperaceae : it is here 

 placed in company with the proper grasses, because I have observed our English 

 species eaten by cows, oxen, and sheep, in common with those species of proper 

 grasses with which they happened to be combined, while the species of other 

 genera of cyperace?e growing oa the spot were rejected ; — not a Botanical reason 

 certainly, but an Agricultural one, which the learned and indulgent Botanist will 

 here, I hope, excuse. 



