330 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
HERBARIUM SPECIMENS FROM Mexico: 
TaMAvuLiras: Tampico, brackish marsh, [Hitchcock 5782. 
San Luts Porosi: Hacienda de Angostura, alkaline meadows, Pringle 3760. 
85. CAMPULOSUS Desv. Nouv. Bull. Soc. Philom. Paris 2: 189. 1810. 
KEY TO THE SPECIES, 
Spike 1.............. 2.20222 ee eee eee 1. C. planifolius. 
Spikes 2 or 3.....2..2202.. 020000000 eee eee ee eee 2. C. plumosus. 
1. Campulosus planifolius Presl, Rel. Haenk. 1: 287. 1830. 
Type locality, ‘‘Mexico.”’ 
Rance: Known only from the type collection and the following. 
HERBARIUM SPECIMEN: 
Oaxaca: Niltepec to Zanatepec, Nelson 2841. 
2. Campulosus plumosus gp. nov. 
Perennial; culm cespitose, crect, scabrous or minutely pubescent, especially below 
the nodes and the inflorescence, about 70 or 80 em. high; sheaths scabrous or the lower 
smooth, those of the culm much shorter than the internodes; ligule 1 mm. or less long; 
blades firm, strongly nerved, soon involute, 10 to 25 cm. long, | to2 mm. wide, scabrous, 
gradually narrowed into an involute setaceous point; inflorescence long-exserted, 
consisting of 2 or 3 digitate, flexuous spikes, 4 to 10 cm. long, the rachis about 1 mm. 
wide, velvety-pubescent, naked at the very base; spikelets closely imbricated, those 
at the base and tip reduced; glumes unequal, the first 2 mm. long, l-nerved, scarious, 
lanceolate, acute, glabrous, glandular along the lower part of the keel, the second 
glume 5 mm. long, 3-nerved, brown-mottled, gradually narrowed to an acute scarious 
apex, the nerves bearing a row of bead-like yellow glands along the lower half or two- 
thirds, the midnerve bristly-pubescent below the awn, the awn attached about the 
middle, stiffly perpendicular, 2 to 3 mm. long, turgid at base; first lemma hyaline 
2.5 mm. long, containing no flower or palea, 3-nerved, densely long-ciliate on the 
lateral nerves nearly to the apex, the hairs 1 mm. long, the awn attached about the 
middle, érect, slender, 4 mm. long, the callus pilose; second lemma hyaline, 3 mm. 
long, ciliate like the first, but the hairs longer, the apex 2-toothed, the awn from 
between the teeth and about 1 mm. below the apex, erect, slender, about 1 cm. long, 
the callus pilose, the palea delicate, narrow, !ess than half as long as the lemma; third 
lemma fertile, 3mm. long, broad, hyaline, 3-nerved, the lateral pair of nerves marginal 
and densely long-ciliate on the upper half (the hairs 2 mm. long), short-ciliate on the 
lower half, the awn irom the obscurely toothed apex, 3 mm. long, erect, the palea 
about as long as the lemma, slightly 2-toothed, the keels scabrous; fourth lemma on 
a stipe about 1 mm. long, sterile, 2mm. long, glabrous and awnless, containing a narrow 
palea about as long as the lemma; fifth floret reduced to a rudiment raised on a slender 
stipe, the whole not exceeding the fourth floret. 
Type in the U. 8. National Herbarium, no, 555998, collected at Cerro Colorado, 
vicinity of Culiac4n, Sinaloa, Mexico, November 5, 1904, by T. 8. Brandegee. 
Known cnly from the type collection. 
86. CHLORIS Swartz, Prodr. Veg. Ind. Occ. 25. 1788. 
KEY TO THE SPECIES. 
Lemma awnless (EustTacuys). 
Floret dark brown, second glume short-awned from a broad 
2-lobed apex........--..---2-----2+--22222- 222 ee 1. C. petraea. 
Floret green or purplish; second glume oblong, awnless, 
acute. 2.2.2.2... eee eee eee eee eee eee 2. C. submutica, 
