98 BOTANY. 
ERIGERON STENOPHYLLUM (sp. nov.): humile, ceespitosum, pube appressa tenuiter cinereum ; 
caulibus floriferis simplicibus e caudice perenni inferne foliosissimis apice nudo monocephalis ; 
foliis angustissime linearibus integerrimis ; capitulo magno; ligulis (semipollicaribus et ultra) 
circiter 40 albis uniseriatis involucro pubescente multo longioribus ; acheniis hirsutissimis; pap- 
po simplici. On hill-sides and steep banks of the Pecos; October. Stems six to ten inches 
high, growing in dense tufts. Leaves cne to three inches long, about a line wide, many of 
them almost filiform ; the lower ones tapering to the base, which is not ciliate nor hirsute ; all 
merely cinereous with a very fine and close strigose pubescence. Scales of the involucre all 
nearly equal and similar, scarcely biserial, linear-lanceolate, acuminate, three or four lines 
long, somewhat tomentose-pubescent. Rays linear, broad for the genus, apparently pure white 
or slightly tinged with purple, certainly not ochroleucous.  Achenia flat, two-nerved, densely 
hirsute with long and white hairs. Pappus similar in the ray and disk, composed of a single 
series of scabrous capillary bristles of about the length of the disk-corolla, not fragile nor 
caducous, of equal length, and not accompanied by short sete or squamelle. This most re- 
sembles E. ochroleucum, Nutt. ; but the leaves are hoary with a finer pubescence, and are not 
hirsute towards the base; the honda are longer and more showy, the rays not ochroleucous, the 
achenia remarkably yillotschirgule; and the exterior pappus wanting. 
EREMIASTRUM BELLIOIDES, Gray, Pl. Nov. Thurb., p. 320. Gravelly hills near the Colorado, 
interior of California; February.  Precocious specimens, less than an inch high, just beginning 
to flower. Mature fruit of this plant is a desideratum. 
TOWNSENDIA GRANDIFLORA, Nutt. in Trans. Amer. Phil. Soc. T, p. 305; Torr. € Gray, Fl. 2, 
p. 186. Erigeron? florifer, Hook. Fl. Bor.-Am. 2, p. 20. Sand-hills and rocky ridges of the 
Antelope hills on the Canadian ; September. 
TowNSENDIA EXIMIA, Gray, Pl. Fendi. p. 70. Laguna Blanca, in pine woods, and Santa An- 
tonita, New Mexico, in mountain ravines; October. The root of this striking and well-marked 
species is perhaps perennial. The branching stems sometimes attain the height of a foot and a 
half. 
APHANOSTEPHUS ARKANSANUS, Gray, Pl. Wright. 1, p. 93. Valley of the Canadian, at Shaw- 
neetown ; August. 
AMPHIACHYRIS DRACUNCULOIDES, DC.; Torr. € Gray, Fl. 2, p. 122. Ravines on Walnut 
creek, of the Canadian ; August. 
Eoman, Torr. & Gray, Fl. 2, p. 123. Antelope hills of the Canadian;‏ ی 
September.‏ 
GUTIERREZIA SPHAROCEPHALA, Gray, Fl. Fendl. p. 73. Prairies and plains near the Pecos, 
New Mexico, September 21. ١ 
SOLIDAGO RIGIDA, Linn. At Beavertown, on the Canadian; August. 
SOLIDAGO PUMILA, Torr. € Gray, Fl. 2, p. 210. On the Pecos, New Mexico; October. 
SOLIDAGO TENUIFOLIA, Pursh.. Sand-hills and Antelope hills on the Canadian; September. 
SoLIDAGO RapuLa, Nutt. in Jour. Acad. Philad. 1, p. 102. With the foregoing, and on the 
Llano Estacado; September. 
SoLIDAGo CANADENSIS, Linn. Deer creek, of the Canadian; August. 
LINOSYRIS ۲۷۷2:6825, Gray, Pl. Wright. 1, p. 95. Between the Canadian and the Pecos, 
September 15. 
LINOSYRIS (CHRYSOTHAMNUS) GRAVEOLENS, Torr. & Gray, Fl. 2, p. 234. Wet places and banks 
of creeks between the Canadian and the Pecos rivers. 
LINOSYRIS (CHRYSOTHAMNUS) DBremLovir (sp. nov.): fruticosa, ramosissima, cinerea; ramis 
flexuosis fastigiato-polycephalis; foliis filiformibus supra canaliculatis; capitulis 5-floris; invo- 
lucro elongato floribus tertia parte breviore, squamis 5-floris 4—5-seriatis pallidis carinatis و‎ 
noideo-ciliatis subacutis appressis, extimis oblongis, intimis lineari-lanceolatis; acheniis acute 
5-angulatis glaberrimis; pappo copioso, setis tenuibus insqualibus. (Tab. XIL) Hills and 
arroyos, Cienegella, above Albuquerque, New Mexico. A dense and fastigiate shrub, apparently 
