Vil/a.2 GRAMINE.E. 



257 



Hab. Lake Huron, Dr Todd; to the Saskatchawan and the Rocky Mountains, Dr Richardson, Drum- 

 mond; and Hudson's Bay, Douglas, 



3. A. (Sorghum, Nees) avenaceus, Mcc, — A, nutans. L, 9 — MuhL — Torr. Fh I, p. 15T, 

 Gray, Gram, et Cyp, Part I, n, 87. 



Hab. Saskatchawan. Drummond. — This is perhaps the northern limit of this handsome grass. It is more 

 frequent in the south, and according to Kunth, it extends to the West Indies and South America, and is the 

 A, stipoides, H. B. K., and the Sorghum par viflor urn of Hamilt. Prodr. FI. Ind, Occ. 



(Add at p. 233, after Alopecurus aristulatus; 



2* A. C(Bspitosus {Trin,); pusillus, tbyrso cylindraceo-oblongo, glumis ad basin usque 



fissis acutiusculis glabriusculis pectinatis, valvula truncato-obtusa, stylis inferne connatis. 

 Trin. Gram. Ic. t 241. 



Hab. Rocky Mountains. Drummond. — A very small species, scarcely 3 inches high, with lax, some- 

 what interrupted and lobed spikes of a tawny green colour : the glumes fringed or pectinated at the keel, and 

 as well as the perianth truncated at the top. The awn is scarcely longer than the valve. It is beautifully 

 figured by Trinius in the work above quoted, and, I presume, from specimens which I gave to the late Mr 

 Prescott; but no station is mentioned further than that the specimen is **boreali-Americanum.'* 



And at p. 239, after Filfa tenacissi7na ; 



3. F, depauperata ( Torr. msL) ; rigida, culmo brevi dichotome ramoso striate glabro fere 

 toto vaginato, foliis lineari-subulatis vaginis margine membranaceis, ligulis ovatls obtusis, 

 racemo composite sub-paniculato paucifloro, glumis in^qualibus ovatls obtusis mem- 

 branaceis enervibus perianthio ^ brevioribus, perianthii valvulis subcequalibus lanceolatis 

 chartaceis acutissimis. (Tab. CCXXXVI.) 



Tota glaberrima, rigida, Culmus 4-6 uncias longus, decumbens, supra basin dichotome ramosus, teres, 

 striatus, per totam fere longitudinem vaginatus ; rami geniculati, flexuosi, articulis sesquiuncialibus. Folia 

 parva, inferiora vix uneiam, superiora 2-3 lineas longa, lineari-subulata, rigida, striata. Vagince ad mar- 

 gines membranaceae. Xi^'wZtE obtusse, in marginem vaginarum decurrentes, Panicula parva subsimplex, fere 

 racemusj vix uneiam longa, erecta, 8-10 flora. PedicelH breves, striati, glabri, erecti. Spiculce ercctse. 

 Glumes inaequales, ovatae, obtusse, membranaceae, subhyalinse, dorso obscure uninervio, perianthio ^ breviores, 

 Perianthii valvulae subchartacese, tequales, concavae vix carinatse, lanceolatae, obscure trinerviae ; exterior 

 aCutissima nuda ; interior apice bifida. 



Hab. N. W. America. Barren sandy parts of the Columbia from Menzies' island upwards. Douglas. — A 

 very distinct species from any I have seen, Dr Torrey considers its place as between V. virgata and V. 

 vagineefoUa. 



Tab. CCXXXVI.— Fi^r. ir'Spikelet ;/. 2. Glumes ;/ 3. Perianth r—wia^ni/fec/.) 



TOL. II. 2 K 



