150 PROCEEDINGS OF THE AMERICAN ACADEMY 



specimens from the Uintas. L. apetala, Gray, Am. Journ. Sci. ser. 2, 

 xxxviii. 405, & Proc. Acad. Philad. 1863, 58 in part. L. Kingii, 

 var. with naked filaments, Wats. 1. c. 247. — Mountains of Colorado, 

 Parry, Hall fy Harbour, Scovill, Wolf; N. W. Wyoming, Parry. 

 = = Arctic or sub-arctic species, or at least of the far North.' 



L. affinis, Vahl. Glandular-pubescent, 3-6 inches high : leaves 

 oblanceolate-linear, j|-3 inches in length : calyx ovate-elliptic, usually 

 contracted at the mouth : petals white or pink ; the blade narrow, 

 entire or retuse, narrowed from near the end to the summit of the 

 more or less distinctly auricled claw ; appendages oblong. — Vahl in 

 Fries, Mant. iii. 36 (1842). L. trijlora, Hornem. Fl. Dan. xiii. t. 2173. 

 L. apetala, Hook. f. Arct. PI. 321 in part Melandrium affine, Vahl in 

 Liebm. Fl. Dan. xiv. 5, obs. Wahlbergella affinis, Fries, Summa Scand. 

 155. Melandryum involucratum, var. affile, Rohrb. Linnsea, xxxvi. 217. 

 — Greenland to N. Alaska, McLenegan, and according to Rohrb. 1. c. 

 southward to Labrador. Warming in Vidensk. Selsk. Forhand. 1886, 

 129, states that in Norway the flowers are of two kinds, perfect and 

 pistillate, and that the petals in the latter are devoid of appendages 

 and auricles. 



L. Taylorae. Very slender, 1-1 \ feet high, puberulent, nearly 

 smooth below, glandular above : stem erect, bearing '3-4 pairs of 

 leaves and two or three long slender almost filiform 1-3-flowered 

 branches: leaves thin, lance-linear, acute or attenuate both ways, 

 finely ciliate, and pubescent upon the single nerve beneath, otherwise 

 glabra te, 2-2 1 - inches in length : flowers terminal or subterminal on 

 the branches : calyx ovate, not much inflated, about 4 lines long, in 

 an thesis but 2 lines in diameter, with green nerves interlacing above; 

 the teeth obtuse, with broad green membranous ciliate margins : petals 

 1^ times the length of the calyx; the blade obcordate, \\ lines long, 

 considerably broader than the slender narrowly auricled claw ; appen- 

 dages lance-oblong. — Peel's River, Mackenzie River delta. Miss E. 

 Taylor, July, 1892. A fragmentary specimen collected on the Kowak 

 River, N. Alaska, by McLenegan, may be doubtfully referred to this 

 species. 



*+ *-<• +•*■ Calyx large, much inflated, almost globose : flowers commonly pendu- 

 lous in anthesis : seeds margined : stems one-flowered except in var. elatior. 



L. apetala, L. More or less viscid-pubescent : stems 2-6 inches 

 high : flowers perfect or pistillate, at first pendulous, but becoming 

 erect in fruit : petals in the typical form included ; the blade short, 

 bifid ; the segments rather irregular, sometimes with a small lateral 

 lobe; the claw auricled. — Spec. 437. L. frigida, Schrank, Pfianz. 



