566 THE FUR SEALS OF THE PKIBILOF ISLANDS. 



52. Potentilla fragiformis, Willd. f. villosa, Pall. 



Cominou on rocky banks on both islands. 



53. Potentilla emarginata, Puish. 



Exposed hillsides ou both islands. 



54. Comarum palustre, L. 



Marshy places and by bogs and ponds ou both islands. 



55. Saxifraga hieracifolia, Waltlst. Kit. 



Not uncommon in damp mossy places ou both islands. 



56. Saxifraga davurica, L. 



Eare ou exposed slopes ou both islands. 



57. Saxifraga stellaris, L., var. comosa, Poir. 



Rare on high interior of St. George Island. 



58. Saxifraga nelsoniana, Dou. 



A common and variable Saxifrage, generally referred to S. punctata, L., is found 

 on shores and islands throughout the Bering Sea region, but a comparison of this 

 plant with Morrison's figure, to which Linnaeus refers, shows that it is not 8. punctata. 



59. Saxifraga serpyllifolia, Pursh. 



S. chrysantha, Merriam's list. 



Not rare ou exposed parts of interior of St. Paul Island. 



60. Saxifraga bracteata, Don. 



Common ou damp rocks ou both islands. 



61. Saxifraga hirculus, L. 



In boggy places, St. l*aul Island. 



62. Saxifraga hirculus, L., var. alpina, Engler, Mon. Sax., p. 124. 



Low, 2 or 3 inches high, densely caespitose, the leaves broader than in the type, 

 subspatulate, petals larger, deep yellow. With Chrysosplenium beringianum on the 

 more exposed hillsides in the interior and toward the northwest end of St. Paul 

 Island. 



63. Chrysosplenium beringianum, Rose, Hot. (iai!.. Vol. XXIII, p. 275. (Plato CXI.) 



"Rootstock 2.5 to 5 cm. long (*?), creeping, sending otf" many long fibrous roots; 

 radical leaves and stems several, spreading and forming a dense rosette; radical 

 leaves small; petiole slender, 1.3 to 4.i~) cm. long, broader at base, the margins (espe- 

 cially below) ciliate with long purplish hairs; blade reniform, 6 to 11 mm. broad, 4 to 5- 

 crenate, crenations sometimes gland-tipped, thickish, pale, and glabrous below, dark 

 green and glabrous or somewhat pilose above; stem 2..5 to 5 cm. high, naked or 

 bearing a single leaf below the involucre; involucral leaves several, entire or 3 creuate, 

 extending beyond the flowers; calyx .5 to 6 mm. broad, 4-lobed, puri)lish or becoming 

 so ; sepals very broad, nearly orbicular, rounded at apex ; disk very prominent, strongly 

 8-lobed; fruiting calyx turbinate, 1 mm, high; capsule 2-horned, to 10 seeded; seeds 

 oblong, 0.5 mm. long, shining, delicately reticulated. 



This species has been confused with C. alternifoUum, from which it appears to be 

 abundantly distinct. G. alternifolmm differs in its habit in lacking the thickish root- 

 stocks and possessing only slender stolons and filiform roots; in its larger, xisually 



