54 C. H. OSTENFELD. M.-N. KI. 
66. Astragalus frigidus (L.) Bunce, Mem. Acad. imp. Sc. St. Péters- 
bourg, VII Ser., t. XV, No. 1, 1869, p. 28; Phaca frigida L., System. 
Nat., ed. 20,1759: 
King Point. In full flower on June 24th—27th, 1906. 
Herschell Isl. In flower and with young fruits in July. 
All the specimens collected belong to var. /ittoralis Hook., Fl. Bor. 
Am., I, 1830, p. 140, sub Phaca frigida (Ph. littoralis (Hook.) RYDBERG, 
Bull. New. York Bot. Garden, II, 6, 1901, p. 176). 
Oxytropis D.C. 
67. Oxytropis nigrescens (PALL) FISCHER in DE CANDOLLE, Prodro- 
mus II, 1825, p. 278; BUNGE, Mem. Acad. Sc. St. Pétersbourg, VII Ser., 
t. XXII, No. 1, 1874, p. 113; A. Gray, Proc. Amer. Acad. A. & S jeu 
1885, pi 3. (See pl. Il, fig. 13.) 
? O. arctica, PuLLEN’s list, Arctic Coast west of C. Bathurst. 
Herschell Isl. One single tuft with young fruits (July 13th, 1906). 
Our specimen agrees with the plant collected by F. R. KJELLMAN 
(Vega Expedition) on St. Lawrence Island. The covering consists of 
white, but not truly silky hairs and the free parts of the stipules are 
lanceolate-triangular, about 3 times longer than broad; the flowers stand 
usually two together and the teeth of the calyx are about as long as its 
tube. In these characters it is different from ©. arctobia BUNGE. 
68. Oxytropis campestris (L.) D. C., var. melanocephala Hoox., Fl Bor. 
Am., I, 1834, p. 1475 cfr. above p. 20.- (See pl IL. fig. 12-) 
O. campestris, Putten's list, Point Barrow to Mackenzie River; Garry Isl; Pelly Isl. 
King Point. Flowering June 29th and July 6th, 1906. 
The few specimens from King Point differ from the King William 
Land plant in the covering of the scape and of the calyx being to a less 
degree dark-pubescent and to a higher degree white-villous; they are 
higher and better developed, but agree in all other characters with the 
other specimens of var. melanocephala, which I have seen. 
69. Oxytropis Roaldi n. sp. (See pl. III, fig. 16.) 
Ex aff. O. Lamberti PURSH et O. monticola GRAY. 
Scapigera, usque ad 20 ctm. alta, multiceps; stipulæ alte petiolares, 
albæ, membranacez, longe-ciliatæ, pars libera uninervis, e basi dilatata 
linearis; foliola 7—8-juga, lanceolato-ovata, adpresso niveo-pilosa; scapi 
foliis longiores pilis subadpressis vel subpatulis instructi; inflorescentia 
subcapitata, 5—10-flora; bracteæ lineari-lanceolatæ, calycem subaequilon- 
gee; calyx tubuloso-campanulata, dentibus triangularibus tubo triplo brevi- 
oribus, pube nigra pilisque longioribus albis instructa; corolla calyci dimidio 
