36 



second empty one; uwii attached one-tifth to two-lifths al>ovc tbo base, not 

 nearly equaling the glume, rather stout, somewhat curved; palea very nearly 

 equaling the Howering glume; callus-hairs very sparse, the lateral ones about 

 three-fifths as long as the flowering glume, the dorsal ones much shorter; pro- 

 longation of the rachilla with its hairs somewhat shorter than the palea. 



Type specimen in the herbarium of the geological survey departnu'nt of Canada 

 (7483), colh'cted on open prairies, evidently in wet soil, in the Cypress Hills, 

 Assiniboia, by John Maeouu, June 20, 1><94. 



A very distinct variety, and may prove to be a good species. 



CALAMAGR03TIS NEGLECTA "WRIGHTII Kearney, var. n. 



Small (2 to 3 dm. high); innovations numerous; leaf-blades nearly fiat, 2 to 8 mm. 



wide; panicle small (4 to 5 cm. long), flexuous, few-flowered. 

 Type specimen in the United States National Herbarium, collected on Arakam- 



chetchene Island, Bering Straits, by Charles Wright (T. S. North Pacific Expl. 



Exp.), 1853-56, and distributed as C. strifjosa Bong. 



33. CALAMAGROSTIS MICRANTHA Kearney, sp.n. 



A slender plant of rather soft texture, with slender creeping rootstocks, erect elon- 

 gated innovations, erect culms rather closely enveloped at base by a few long 

 marcesceut sheaths and contracted spike-like panicles of very small spikelets. 

 Culms 4.5 to 5.5 dm. high, very slender, strict; internodes 3, the two upper much 

 exceeding their sheaths, the uppermost finally exceeding both sheath and blade. 

 Sheaths closely embracing the culm, thin, glabrous. Ligule 1.5 mm. or less in 

 length, truncate or rounded, rather firm, glabrous, whitish. Blades (of inno- 

 vations and the lower cauline) about 2 dm. long (uppermost cauline), 6 to 12 cm. 

 long; all 1 to 1.5 mm. wide, involute filiform near apex but elsewhere flat, erect 

 but not rigid, thin, scabrous on the margins, minutely scaljroiis-pubescent on 

 the nerves above, glabrous beneath. I^anicle about 8 cm. long, 1 cm. in greatest 

 width, narrow-oblong, acutish, erect, sometimes somewhat flexuous toward 

 apex, densely flowered, somewhat interrupted toward base, dark purple; rachis 

 slender, sparsely scabrous-pubescent (nearly glaljrous toward base), its lowest 

 internode about 1.5 cm. long; branches slender, appressed, minutely scabrous- 

 pubescent, tlcxuous, densely flowered, the lower primary branches in I's to 5's, the 

 longest 1 to 1.5 cm. long. Spikelets about 2 mm. long. Empty glumes ovate, 

 acutish, rounded on the back, thickish, strongly hisi)idnlous on the keel, else- 

 where scabrous especially toward apex, dark red-pur|)lc, the first slightly longer 

 and narrower. Flowering glume only slightly shorter than the euipty glumes, 

 broadly ovate, deeply bifid, minutely denticulate, rather firm-membranous with 

 hyaline ti]) and edges, scabrous-punctate on the back, usually tiuged with red- 

 purple; awn attached at the middle or slightly below, 1 to 1.5 mm. long, usually 

 considerably exceeding the glume (sometimes merely e<iualing it), straight, com- 

 paratively stout. Palea about three-fourtlis as long as the flowering glume, 

 ranch narrower, strongly keeled, bifid, glabrous. Anthers about 1 mm. long. 

 Callus-hairs soft, usually <me-half (sometimes four-fifths) as long as the flower- 

 ing glume. Prolongation of the rachilla, with its sparse liairs, somewhat 

 surpassing those of the callus. 



Type specimen in the United States National llerl)arium, collecte<l in a "moos- 

 keg" north of Prince Albert, Saskatchewan, by .hdiu .Macoun (llllll G. S. C), 



.Inly 1.1896. 

 Nearly relatecl to and resembling in habit and ajjpearance V. ncgltcUi from which it 

 difl'ers in its flatter leaves, narrower panicles, very small spikelets, and ovate, 

 merely acutish, thicker and more scabrous empty glumes. 



