18 UNITED STATES AND MEXICAN BOUNDARY, 
ERIGERON BELLIDIASTRUM, Nutt.; Gray, l. c. New Mexico; Wright. 
ERIGERON (C@NOTUS) SUBDECURRENS? Conyza subdecurrens, Gray, РІ. Fendl. p. 78, & Pl. Wrigh, 
1, p. 192. W. Texas (on the Pecos) to the Gila and Sonora; Thurber. San Luis Rey, Califor- 
nia; Parry. It is very doubtful if this be De Candolle’s plant, of which I found no specimens 
in the reliquie of Berlandier’s collection. | 
EnraERON GLAUCUM, Ker.; Torr. Ё Gray, Fl. 1. c. Monterey, California; Parry, etc. 
卫 RIGERON Doverasu, Torr. Ф Gray, l. с.; var. foliis angustissimis fere filiformibus. Moun- 
tains near San Diego, California; Parry, Thurber, Schott. 
рэн ERIGERON (POLYACTIDIUM) DELPHINIFOLIUM, Willd.; Gray, Pl. Wright, l. с. Cobre, New Mexico, 
- &с.; Wright, Bigelow, Thurber, (а canescently hirsute variety.) 
ERIGERON MODESTUM, Gray, l. с. Live Oak creek, Texas; Wright. 
卫 RIGERON BIGELOVII (sp. nov.): cinero-hispidum; caulibus (6—8-pollicaribus) e basi lignescente | 
ramosis adscendentibus, ramulis monocephalis ; foliis linearibus spathulato-lanceolatis acutatis, 
inferioribus spathulatis integerrimis in petiolum attenuatis; involucro subtriseriali, squamis 
lineari-lanceolatis acuminatis margine scariosis dorso subglandulosis parcissime hispidis, exte- 
rioribus brevioribus ; ligulis 40-50 uniserialibus purpureis; acheniis hispidis ; pappo e setis 
hispidulis 15-16 corollam disci subzquantibus et totidem squamellato-setaceis subtriplo brevi- d 
oribus. Near Fronteras, New Mexico, March, April; Bigelow. Also collected by Mr. Wright, 7421 
but in too few specimens for distribution. The species should rank next to E. modestum ; but 
its heads are nearly twice as large; the rays (3 lines long) purple, more imbricated; the involucre 
scarcely hispid, and the pappus less fragile; the exterior series longer. It is one of the species 
intermediate between Erigeron (Pseuderigeron) and Diplopappus. 
^ DiIPLOPAPPUS ERICOIDES, Torr. & Gray, Fl. 2, p. 182; var. HIRTELLA, Gray, Pl. Fendl. p. 69. 
Rocky places throughout New Mexico and adjacent districts. 
Distasis MODESTA, DC. Prodr. 5, р. 279. High plateaus on the Rio Grande, Pecos, etc. On 
Mt. Carmel Dr. Parry gathered a glabrate autumnal form, with longer and rigid branches, 
which is somewhat peculiar. | 
TowNsENDIA STRIGOSA, Nutt. ; Torr. & Gray, Fl. l.c. El Paso, and adjacent parts of 
"^ Chihuahua. 
TowNsENDIA (MEGALASTRUM) W RIGHTII: suffrutescens, viscoso-puberula ; ramis adscendentibus 
(subpedalibus) apice nudis ; foliis spathulatis integerrimis setigero-apiculatis inferne in petiolum 
marginatum attenuatis ; involucri biserialis squamis ovato-lanceolatis longe caudato-acuminatis 
submarginatis extus glanduloso-puberulis; ligulis magnis; pappo in radio et disco conformi 
multisetoso.—Aster? (Megalastrum) Wrightii, Gray, Pl. Wright, 2, p. 75. Stony hills on 
the Rio Grande, 60 or 70 miles below El Paso; Wright. Mouth of the great caüon of the 
Rio Grande; Bigelow. This striking plant is clearly only an extreme form of Townsendia, | 
with the pappus more copious and finer than usual. | | 
EREMIASTRUM BELLIOIDES, Torr. Ё Gray, Pl. Thurber, р. 320 ; & in Расі. В. Road Expl. 6, p. | 
361, 2. 6. On the desert of the Colorado of the West; Thurber. Fort Yuma, etc.; Schott. | 
The specimens all too young. f 
KEERLIA BELLIDIFOLIA, Gray £ Engelm. Pl. Lindh. 2, р. 220. On the Nueces and Blanco; 1 
Wright, Parry. 
APHANOSTEPHUS RAMOSISSIMUS, DC.; Gray, РІ. Wright, 1. с. On the Nueces, Rio Grande, etc. 
SU 
> 
4 * 
v 224% ot mee E es AO Lote J “Ёс 
ын ОТ бхад чиний Qar À 7 > 2 £ t + "n с f P 5 Э 3 
& ? 
