HITCHCOCK—MEKXICAN GRASSES. 369 
Rance: Pacific slope of southern Mexico. 
HERBARIUM SPECIMENS FROM MEXIco: 
Jauisco: Guadalajara, Rose & Hay 6277; cool slopes of barranca, Pringle 2046; 
under cliffs, barranca, Pringle 11249, 11765. 
Oaxaca: Dolores, Liebmann 541. 
la. Senites latifolia pringlei (Hack.). 
Zeugites pittiert var. pringlei Hack. Oesterr. Bot. Zeitschr. 52: 373. 1902. 
Type locality, ‘‘Mexico: ad Guadalajara,’’ the type specimen collected by Pringle 
(no. 2322). 
RanGeE: Southwestern Mexico. 
HERBARIUM SPECIMENS: 
Jauisco: Cool moist places, bluffs of Rio Grande de Santiago near Guadalajara, 
Pringle 2322. Guadalajara, shady place by trail down Barranca de Oblatos, 
Hitchcock 7362. 
GUERRERO: Canyon de la Mano Negra, near Iguala, Rose, Patnter & Rose 9384. 
Iguala, canyon, Pringle 10386. 
2. Senites capillaris sp. nov. 
Perennial; culms erect, robust, 1.5 to 2 meters high, glabrous, sparingly branching 
from the upper nodes; sheaths villous on the margins, otherwise nearly glabrous, 
the lower loose, bladeless or with but a small triangular tip; ligule membranaceous, 
scarcely 1 mm. long; petiole 2 to 3 mm. long, densely villous; blades scabrous on both 
surfaces, 15 to 20 cm. long, 4 to 6 cm. wide, lanceolate or elliptic-lanceolate, taper- 
ing into an acuminate point; panicles loosely flowered, the slender branches spread- 
ing, few-flowered, the capillary pedicels recurved at the apex; spikelets nodding, 
about 7 mm. long, with 1 fertile and 3 or 4 sterile florets; glumes 5-nerved, not reticu- 
late, unequal, dissimilar, the first 3 mm. long, oblanceolate or cuneate, subcucullate, 
rounded and entire at the apex, pubescent, the second attached about 0.5 mm. above 
the first, 2 mm. long, oblong, strongly gibbous, truncate and somewhat erose at apex, 
less pubescent than the first; fertile lemma about 3 mm. long, broadly ovate, gibbous, 
abruptly acute, about 11-nerved, scaberulous toward the tip, awnless; sterile lemmas 
3 to 4 mm. long, narrower and more loosely arranged than in S. latifolia. 
Type in the U. 8. National Herbarium, no. 691234, collected in ‘‘Rich soil, wooded 
hillside, 450 meters altitude,’’ Alzada, Colima, Mexico, September 21, 1910, by A. 8S. 
Hitchcock (no. 7073). . 
Known only from the type collection. 
3. Senites smilacifolia (Scribn.). 
Zeugites smilacifolia Scribn. Bot. Gaz. 21: 134. 1896. 
Type locality, ‘‘Faucibus, prope Cuernavaca, Morelos civitate,” the type speci- 
men collected by Pringle (no. 5961). 
Rance: Known only from the type locality. 
HERBARIUM SPECIMENS: 
MorELos: Cuernavaca, wet barranca, Pringle 5961, 6604, 11251. 
4. Senites pringlei (Scribn.). 
Zeugites pringlet Scribn. U.S. Dept. Agr. Div. Agrost. Bull. 11: 50. pl. 6. 1898. 
Type locality, ‘‘wet mountain canyons near Cuernavaca, State of Morelos, Mex- 
ico,’’ the type specimen collected by Pringle (no. 7774). 
Rance: Mountains of Morelos. 
HERBARIUM SPECIMENS: 
More os: Sierra de Tepoxtl4n, under limestone cliffs, Pringle 8361, 11250, 13896. 
Cuernavaca, Pringle 7774. 
