226 Rhodora [DECEMBER 
Var. oligocephalus, n. var., caulibus solitariis vel caespitosis 6—30 
cm. altis hirsutis eglandulosis vel non evidenter glandulosis; capitulis 
subnutantibus demum erectis solitariis vel 2-8 laxe corymbosis, 
pedunculis plerumque elongatis valde ascendentibus; involucro 
7-10 mm. longo, bracteis lineari-attenuatis appressis hirsutis; radiis 
lilacinis in siccitatis subcaeruleis discum paullo superantibus. 
Stems solitary or tufted, 6-30 cm. high, hirsute, glandless or not 
obviously glandular: heads at first somewhat nodding, becoming 
erect, solitary or 2-8 in a loose corymb, the mostly elongate peduncles 
strongly ascending: involucre 7-10 mm. long; its appressed linear- 
attenuate bracts hirsute: rays lilac (drying bluish), slightly exceeding 
the disk.— Var. debilis Gray, Syn. Fl. i. pt. 2, 220 (1884) as to Labra- 
dor and Hudson Bay plants. FE. alpinus 8 Hook. Fl. Bor.-Am. ii. 
18 (1834). E. elatus Greene, Pittonia, iii. 164 (1897), not E. alpinus 
y elata Hook. |. c.— Labrador to Mackenzie, south to Gaspé County, 
Quebec, and Alberta. Examined from the following stations. 
LABRADOR: near Okak (Weiz); wet calcareous-sandstone crests and 
slopes, Blane Sablon, August 6, 1910 (Fernald & Wiegand, no. 4138, 
TYPE in Gray Herb.). Hupson Bay (Burke). QuEBEC: gravelly 
banks of River Ste. Anne des Monts, July 16, 1906 (Fernald & Collins, 
no. 255). Mackenzie, Fort Good Hope, July 12, 1892 (Elizabeth 
Taylor, no. 29). ALBERTA, above Laggan, July 13, 1904 (John 
Macoun, Herb. Geol. Surv. Can., no. 65,548). 
The Weiz material from northeastern Labrador and the Burke 
specimens from Husdon Bay were included by Dr. Gray in var. 
debilis, but the more recent collections from southern Labrador and 
eastern Quebec show that the eastern material differs in several 
points from the northwestern specimens which were first cited and 
well characterized in the original description of var. debilis. In true 
var. debilis the heads are commonly smaller, the peduncles and 
involucres are obviously glandular-puberulent but scarcely hirsute, the 
involucral bracts have somewhat squarrose tips, and the rays in dried 
specimens are roseate and conspicuously longer than the disks. As 
shown by an authentic specimen given by Hooker to Gray our plant 
is Hooker's Æ. alpinus “b. foliis angustioribus, ramis elongatis" from 
the “Rocky Mountains in elevated situations." ! Var. oligocephalus 
also matches very closely the description of E. elatus Greene, but it 
apparently is not E. alpinus y elata Hook., from which variety Greene 
derives his specific name. Hooker’s E. alpinus y elata was very 
inadequately described, being distinguished from E. alpinus by the 
single word “subpedalis,” but, whether or not its name can be con- 
1 Hook. Fl. Bor.-Am. ii. 18 (1834). 
