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BOTANY. 17 
America and elsewhere, which it is now hardly worth while to clear up in detail, since it is 
evident that the two really belong to one polymorphous species, which includes Bentham’s С. 
virgata and C. obovata also. The plant has a persistent base, and biossoms at various Seasons; 
the wool is either permanent or deciduous, ete. Should my conjecture about C. incana prove 
true, the known forms of the genus may be reduced to two species, C. Californica and C. filagi- 
nifolia. 
MACILERANTHERA CANESCENS, Gray, Pl. Wright. 1, р. 89, өс. Along the boundary every- 
where, from the upper part of the Rio Grande to the Gila, &c. 
MACIUERANTHERA TANACETIFOLIA, Nees. Ast. p. 224; Gray,l. c. From the Pecos to Sonora, 
etc. ; in various forms. 
MACILERANTHERA PARVIFLORA, Gray, l. c. Plains and mountains, southern borders of New 
Mexico and adjacent parts of Sonora; also on the Gila; Bigelow, Parry, Wright, Thurber. 
PsILACTIS ASTEROIDES, Gray, Pl. Fendl. p. (2. Along the Rio Grande, from Presidio to El 
Paso, etc., and in Sonora. 
ASTER MULTIFLORUS, Ай. Common from the lower Rio Grande to the Gila, ete. A. hebecladus 
and A. scoparius, DC., are founded on exactly the same thing in Berlandier’s collections. 
ASTER SIMPLEX, Willd. Sonora; Wright. On the Mimbres, New Mexico; Bigelow, 
Aster CARNEUS, Nees. А. coerulescens, DC. Prodr. 5, p. 235. Western Texas; Thurber, 
On the Pecos; Bigelow. 
ASTER PUNICEUS, Linn.; var. VIMINEUS, Torr. & Gray. Mimbres; Bigelow. Sierra de los Ani- 
mos; Wright. 
ASTER LONGIFOLIUS, Lam. -On the Mimbres; Wright. 
ASTER NOVI-BELGII, Linn. Also on the Mimbres, etc.; Wright, Bigelow, 
ASTER SPINOSUS, Benth. Pl. Hartw. p. 20. Along the Rio Grande, below El Paso, to its 
mouth. 
ASTER DIVARICATUS, Nutt. From the lower Rio Grande to Sonora. 
ASTER ANGUSTUS, Torr. Ё Gray, l. с. Sand bars of the Rio Grande, below Doña Апа; Wright, 
Bigelow. Probably brought down the river from the Rocky mountains. 
Aster PAUCIFLORUS, Nutt.; Gray, Pl. Wright, 2, p. 76. Subsaline soil, west of the Chiricahui 
mountains and Santa Cruz, Sonora; Wright. 
ASTER BLEPIIAROPHYLLUS, Gray, Pl. Wright, 1. c. Subsaline soil, Los Playos Springs, New 
Mexico; Wright. 
Aster Sonor, Gray, Pl. Wright, l. с. In the same region as the last two species. 
Aster CHILENSIS, Nees.; var. B. Torr. & Gray, Fl. 2 P. 112. A. Durandi, Nutt. in herb. Cali- 
fornia; Rev. Mr. Fitch. 
Зил (Canotus) CANADENSE, Linn. On the Gila; Thurber; and doubtless almost every- 
where. 
ERIGERON (Сахотов) ERIOPHYLLUM, Gray, Pl. Wright, 2, p. Tt. Оп the Sonoita, Sonora; 
Wright. 
` ERIGERON MACRANTHUM, Nutt.; Gray, Pl. Fendl. p. 61, ete. Cobre, New Mexico; Wright, 
Bigelow. 
ERIGERON DIVERGENS, Torr. £ Gray, Fl. 2, p. 115, Gray, Pl. Wright, 2, p. ТТ; var. CINEREUM, 
W. Texas to the Gila (T'hurber) and Tucson, Sonora; Schott. 
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