20 RypBERG: STUDIES ON THE Rocky MOUNTAIN FLORA 
is related to A. gracilens and A. aurantiaca and should have been 
included in the latter as characterized by Professor Nelson. Ago- 
seris rostrata is not closely related to either but is the next relative 
to A. grandiflora of the Pacific Slope, having the same short outer 
bracts and elongated inner ones and the same very long and 
slender beak of the achenes, nearly three times as long as the 
body. It is the ‘‘T. grandiflorum as to our range,’’ an expression 
which Professor Nelson erroneously uses under Troximon mon- 
tanum. 
Agoseris turbinata sp. nov. 
Perennial with taproot and short caudex; leaves narrowly 
linear, 7-15 cm. long, 1-5 mm. broad, glabrous, bluish green, the 
midvein and base often purplish, entire, attenuate; scape about 
3 dm. high, slender, sparingly villous, more densely so under the 
head; involucres turbinate, 17-20 mm. high; bracts all narrowly 
lance-linear, villous on the back as well as on the margins, with 
dark purple middle and yellowish green margins; ligules 15-18 
mm. long, yellow with purplish veins, turning pinkish in age; 
beak of the achenes short and striate. 
This resembles in many respects Agoseris parviflora in habit, 
but differs in the villous scape and involucre and in the beautifully 
variegated bracts. 
ALBERTA: Gravel Slope of Tunnel Mountain, Mc Calla 2063 
(type, in herb. N. Y. Bot. Gard.). 
Agoseris obtusifolia (Suksd.) Rydb. nom. nov. 
Troximon grandiflorum obtusifolium Suksd. Deuts. Bot. Monats. 
18: 98. 1900. 
This is characterized by the broad oblong obtuse lobes and 
the obtuse or even rounded apex of the leaves. I think that it 
deserves specific rank. It has been collected in western Idaho. 
Agoseris tenuifolia (A. Gray) Rydb. nom. nov. 
Troximon grandiflorum tenuifolium A. Gray, Bot. Calit. a* 438; 
in part. 1876. 
Troximon laciniatum A. Gray, Proc. Am. Acad. 19: 72, in part. 
1883. Not Stylopappus laciniatus Nutt. Trans. Am. Phil. 
Soc. If, 9: ase, Iman: 
In the Botany of California Gray gives a short description of 
