276 BOTANICAL GAZETTE [ APRIL 
several, entire or 3-crenate, extending beyond the flowers: calyx 
5 to 6™" broad, 4-lobed, purplish or becoming so; sepals very 
broad, nearly orbicular, rounded at apex; disk very prominent, 
strongly 8-lobed; fruiting calyx turbinate, 1™" high: capsule 
2-horned, 6 to 10-seeded; seeds oblong, 0.5™" long, shining, 
delicately reticulated. 
Collected by C. Hart Merriam on St Paul Island, August 7, 
1891, and described in the Proceedings of the Biological Society 
without specific name; since collected on the same island by Mr. 
F. W. True and D. W. Prentiss, Jr., August 6, 1895 (no. 66), 
and by Mr. James M. Macoun, July 6, 1892, and 1896; sub- 
sequently by Mr. Beaman on St. Paul, and one specimen by Dr. 
Dall in “Alaska.” 
This species has been confused with C. a/ternifolium, from which it 
appears to be abundantly distinct. C. alternifolium differs in its habit in 
lacking the thickish rootstocks and possessing only slender stolons and fili- 
texture (when dry), paler in color; petioles with margins usually glabrous 
but sometimes ciliate with a few white hairs. 
Our form, which resembles C. ¢efrandrum in the size and shape of the 
leaves, has 8 stamens instead of 4, purple instead of greenish flowers, larger 
and definite seeds (6 to 10 instead of 30 to 50), stronger-lobed disk, and 
apparently differs also in its habit. 
In the study of this species I have had all the material from the Gray 
Herbarium, Columbia College Herbarium, Herbarium of the Natural History 
Survey of Canada, Herbarium of the Philadelphia Academy of Science, and 
National Herbarium. I also sent specimens to Kew and received the assur- 
ance thatit “differs from everything else at Kew.” Mr. James M. Macoun 
has also studied it in connection with the material at Kew and the British 
‘This species will be redescribed and figured in the forthcoming a 
ns of the Plants of the Pribilof Islands by Mr. James Macoun, which 
— in the formal report of the Fur Seal Commission now in press. 
? i * Lower leaves all opposite. : 
? = Leaves orbicular, abruptly petioled, with few coarse crenations 
- Splhie sessile or kd So: eastern. 
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