682 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
43. Erigeron platyphyllus Greene, Leaflets 1: 145. 1905. 
TyPE LocauiTy: Santa Rita Mountain, New Mexico. Type collected by Metcalfe 
(no. 1469). 
Rance: Known only from the type locality, in the Transition Zone. 
44. Erigeron rudis Woot. & Standl. Contr. U. 8. Nat. Herb. 16: 184. 1913. 
Tyre Locauiry: White Mountains, Lincoln County, New Mexico. ‘Type collected 
by Wooton (no. 270). 
RanaeE: Mountains of southern New Mexico. 
New Mexico: White Mountains; Burro Mountains; Mogollon Mountains; Capitan 
Mountains. Damp‘pround, in the Transition Zone. 
45. Erigeron semirasus Woot. & Standl. Contr. U. 8. Nat. Herb. 16: 185, 1913. 
Type Locauiry: Mogollon Creek, Mogollon Mountains, New Mexico. Type col- 
lected by Metcalle (no. 320). 
RanaeE: Mountains of New Mexico. 
New Mexico: Mogollon Mountains; Santa Fe and Las Vegas mountains. Damp 
woods, in the Transition and Canadian zones. 
46. Erigeron bakeri Woot. & Stand]. Contr. U. 8. Nat. Herb. 16: 185, 1913. 
Type Locauiry: Near Chama, New Mexico. Type collected by Baker (no. 678). 
Rance: Northern New Mexico. 
New Mexico: Chama; Dulce. Meadows, in the Transition Zone. 
34. BRACHYACTIS Ledeb. 
Low branched leafy-stemmed annual with alternate entire leaves and small race- 
mose-paniculate heads; involucres campanulate, rather small, of 2 or 3 series of narrow, 
nearly equal bracts, the outer foliaceous and resembling the leaves, the inner mem- 
branaceous or scarious; achenes narrow, not compressed, 2 or 3-nerved, pubescent; 
pappus simple, of capillary bristles; rays very short. 
1. Brachyactis woodhousei (Wooton) Woot. & Standl. 
Aster woodhousei Wooton, Bull, Torrey Club 25: 458. 1898. 
Tyree LocaLity: Near Zuni, New Mexico. Type collected by Woodhouse. 
Rance: Northwestern New Mexico. 
New Mexico: Zuni; Albuquerque. 
35. ASTER L. Aster. 
Perennial branched herbs with leafy stems, sessile or petiolate leaves, and 
corymbose, paniculate, or racemose heads of yellow flowers; rays purple, blue, or 
white; ray flowers fertile; involucral bracts more or less imbricated, appressed or 
spreading, with green foliaceous tips; receptacle flat, alveolate; achenes more or 
less flattened ; pappus of capillary bristles in a single series, 
KEY TO THE SPECIES. 
Involucres and often the stems glandular. 
Leaves scabrous or variously pubescent. 
Bracts linear, about equal; plants stout.........----- 1. A, novae-angliae, 
Bracts oblong or lanceolate, very unequal; plants 
comparatively slender ......2--.....-...------- 2. A. oblongifolius, 
Leaves glabrous, except sometimes on the margins, 
Leaves conspicuously ciliate; stems clustered, very 
NUMEYOUS. .....--2 22-2 eee eee 3. A. fendleri. 
Leaves not ciliate; stems few or solitary. 
Heads large, about 12 mm. wide...........-.-.- 4. A. hydrophilus. 
Heads smaller, less than 10 mm. wide. 
Leaves long, nearly linear, acute; heads few. 5. A. pauciflorus, 
