84 
collected by C. G. Pringle on the plains of Mendocino California, and also No. 1089 
of Kellogg & Harford and No. 3 of Bolander. The culms are from strong rhizomas, 
avd about 2 feet high, slender, naked above, radical tufts very leafy, with narrow, 
rigid, setaceously pointed leaves, about 6 inches long ; panicle strict, purplish, 2 to 
34 inches long; empty glumes, oblong-lanceolate, barely acute; floral glumes fuily as 
long, oblong, broadly toothed at apex; awn from below the middle, hardly equal- 
ing its glume; hairs of callus scanty and very short, the rudiment short and naked. 
25. C. crassiglumis Thurb. Bot. Cal. 11. p. 281. Culm about a foot high, erect, 
rigid; radical leaves nearly as long; those of the culm 3 to 4 inches long, divergent, 
the upper smaller, erect, usually reaching the panicle, all acute, rigid, flat below, 
becoming involate, strongly striate, rough; sheaths loose, smooth ; panicle strict, 
scabrous, about 2 inches long, dense, purplish, the short, rough rays appressed ; 
empty glumes, about 2 lines long, nearly equal, broadly ovate or ovate-lanceolate, 
abruptly pointed, minutely scabrous, subcartilaginous, the margins thin ; floral glume 
about equally long, very broad, acute, obscurely toothed at apex, thickish, some- 
what scabrous, the rather stout awn attached below the middle, equaling or slightly 
exceeding its glume; hairs of callus and rudiment aboat $ as long; palet one-fourth 
shorter than its glume.—Swamps, Mendocino County, Cal. (No, 4766 Bolander), 
26. C. Lapponica Trin. (Gray’s Manual, 6th ed., p. 650.) (Deyeuxia Lapponica 
Kth.) “Culm and rootstocks stouter than in C. stricta; the narrow panicle less 
dense, and purplish spikelets larger; glumes fully 2 lines long, tapering to a point; 
awn from much below the middle of the (floral) glume, stout.—Isle Royale, Lake 
Superior, to Labrador, north and westward.” 
This is the description given in Gray’s Manual for a species or supposed species of 
this country, which I do not fully recognize. I feel sure we have not here the Cala- 
magrostis Lapponica of Wahlenberg as illustrated in the Flora Lapponica. 
27. C. densus Vasey. Bot. Gaz. xvi. p. 144. Culms in large patches, from 
strong rootstocks, 3 to 4 feet high, robust, leafy, 5 to 6 nudes; the lower sheaths 
loose and longer than the internodes, the upper including the base of the panicle, 
leaves often a foot long, rigid, plane, or becoming somewhat involute at the long 
slender points, somewhat scabrous, as are the sheaths; ligule 1 line long, lacerate 5. 
panicle strict lance-oblong, 4 to 6 inches long, rachis slightly scabrous, branches 
somewhat verticillate, appressed, 1 inch long, and densely flowered ; spikelets 
crowded, 2 to 24 lines long; outer glumes linear-lanceolate, nearly equal, acute, 
slightly scabrous, margins slightly scarious; third (or flowering) glume a little 
shorter, narrow, apex slightly toothed and mucronate, a few short hairs at the base; 
awn twisted near the base, a little longer than its glumes; palet a little shorter 
than the glume, thin; sterile tuft stender, 4 to 4 as long as the glumes, with few 
hairs.—Near Julian, San Diego County, Cal. (C. &. Oreutt). 
28. C. koelerioides Vasey. (Bot. Gaz. xvi. p. 144.) Culms erect, 2 feet high, 
rather rigid, smooth; leaves 2 to 6 inches, long, narrow, somewhat scabrous, ligule 
conspicuous, laciniate, blade rigid, pointed, the upper very short; panicle spikelike, 
narrow, 3 to 4 inches long, the branches in short, approximate (or at the base rather 
distant) clusters; spikelets about 2 lines long, linear-lanceolate, rather smaller, but 
otherwise much as in Calamagrostis densus, the panicle having much the appearance 
of Koeleria cristata.—Julian, San Diego County, Cal. (C. &. Orcutt), 
§2. CALAMOVILFA Gray. 
Rudiment of second flower wanting; glumes and palet rather char- 
aceous, compressed-keeled; flowering glume 1-nerved, entirely awnless; 
palet strongly 2-keeled; panicle at length open and loose. 
29. C. longifolia Hook. (Gray’s Manual, 6th ed., p. 651.) (Ammophila longifolia 
Benth.) Culms stout, 2 to 6 feet high, often reed-like, from strong, scaly, creeping 
rootstocks, smooth; leaves rigid, often 1 to 2 feet long and 10 to 12 on a culm, flat, 
tapering into a long attenuated point; ligule, a narrow, woolly ring, more copious 
