94 H. G. SIMMONS. [sec. arct. exp. fram 



the style should be longer and more slender than in B. hirta and the 

 covering should consist mainly of stellulate hairs. Among my material 

 there are specimens that are entirely in accord with those of Vahl from 

 Greenland and Spitsbergen, but in examining the whole material, I soon 

 found that both characters are not always united. One may find forms 

 with a short and dense covering, but having besides, almost sessile 

 stigma, and, on the other hand, such as are covered with only simple 

 or forked hairs, forming a more or less dense clothing but, notwith- 

 standing, supplied with the long and slender style, which should belong 

 to D. ardica. As a variety this may stand, and may comprehend the 

 most short-haired forms of the species. So I have used the name for 

 some of my specimens. The characteristic derived from the style is of 

 no value whatever, as it will be different in the same individual. 



Already before the middle of June, D. hirta was in flower, and 

 was then found all through the summer both with flowers and fruit. 

 It preferred slopes and especially rookeries and other richly-manured 

 places but was also found in poorer locahties. 



Occurrence. Grinnell Land (and North coast?). Discovery Har- 

 bour (Greely). That part of Hart's D. rupestris belongs here, I am 

 sure, as I have seen specimens; but, on the other hand, he has con- 

 founded several plants under that name and, consequently, special loca- 

 lities cannot be given. The plant from Dobbin Bay (Hart, 1. c, p. 26) 

 with pale yellow flowers is certainly no D. hirta (perhaps D. alpina 

 var. gracilescens). Hayes Sound district: Skraling Island (4198), Fram 

 Harbour (656, 1092). South coast: Fram Fjord (1642); Muskox Fjord; 

 Goose Fjord at Falcon Cliff (2889), and in the rookery at Gull Cove 

 (2894). Here also grew a f. canescens, which had a dense, and soft 

 grayish hair-covering in stems and leaves, and had also rather hairy 

 pods. The stems were short and coarse, and grew in dense tufts with 

 the leaves very persistent (2897, 3880). At the Castle Point, I found a 

 small, stunted form, with contracted inflorescence, which could perhaps 

 be referred to var. altaica, C. A. Met. (3962). Forms resembling the 

 D. rupestris of Rob. Brown, I have from Fram Fjord (4202) and from 

 the "green patch" at the anchorage in Harbour Fjord (4207). Var. 

 ardica was collected at Twin Glacier Valley (872, 874, 879), Skraling 

 Island (1383), and Gape Viele (886) in the Hayes Sound region and 

 at Fram Fjord (4200, an especially typical D. ardica; 4203), at the 

 Barren Vallies (2399) and the "green patch" (2153, 2546) in the Har- 

 bour Fjord. According to Gelert, 1. c, p. 307, it is also collected in 

 Grinnell Land. 



