CATALOGUE. 211 



ing the calyx ; anthers obtuse ; filaments glabrous ; disk none. — Stems 2-6' 

 long, with numerous shining green leaves 4-9" in diameter ; flowers white, 

 1" in length ; fruit scarlet. Rocky Mountains of British America to latitude 

 57°, (Drummond,) and Colorado; Cascade Mountains, (Newberry.) Uinta 

 Mountains ; 8-9,000 feet altitude ; August. (739.) 



Kalmia glauca, Ait., Var. microphylla, Hook. Leaves somewhat 

 oval, scarcely ¥ in length. — Leafy stems 1-2' long, scarcely appearing above 

 the grass on the turfy banks of alpine lakes ; flowers 1-4, on 1' long pedicels. 

 The species extends from Pennsylvania northward to the Arctic Sea, and to 

 Sitka and Oregon on the Western Coast; Rocky Mountains of Colorado. 

 The variety is the usual Rocky Mountain form. East Humboldt and Clover 

 Mountains, Nevada, and in the Uintas ; 9-10,000 feet altitude ; August, Sep- 

 tember. (740.) 



Ledum glandulosum, Nutt. Trans. Amer. Phil. Soc, n. s., 8. 270. 

 Branches rigid ; leaves elliptical, entire, usually obtuse but mucronate, long- 

 petioled, glabrous on both sides, paler and resinous-punctate beneath ; cap- 

 sules globose-ovate. — "Rocky Mountains," (Nuttall ;) Northern California, 

 (Bolander 4736, 6546.) Subalpine in the East Humboldt Mountains, Ne- 

 vada, and in the Uintas ; 9-10,000 feet altitude ; August, in flower. As 

 found in Nevada and Utah, it is a low branching evergreen shrub, about 2° 

 in height, with leaves i-li' long, on rather slender petioles 1-4/' in length, 

 minutely reticulate-veined, the margin rarely at all revolute, sometimes pubes- 

 cent upon the midvein and petiole, and with numerous yellow resinous dots 

 beneath ; calyx-lobes oblong, very obtuse, ciliate ; flowers 4" in diameter, dull 

 white; stamens 4-10. Californian specimens have the leaves thicker and more 

 revolute, with the flowers on shorter pedicels and more densely umbeled. (741.) 



Pyeola EOTUNDiFOLiA, L., Var. INCAENATA, Hook. The species extends 

 from the mountains of Greorgia northward to New England and throughout 

 British America to the Arctic Ocean, Greenland and Behring Strait ; North- 

 ern California (Newberry) and Colorado. East Humboldt Mountains, Nevada, 

 and in the Uintas ; 6,500-7,000 feet altitude ; July, August. The specimens 

 are 8-18' high, with leaves 2-2^' in diameter, with elongated (4-6') many- 

 flowered racemes ; the calyx-lobes are uniformly triangular-ovate, in this 

 respect resembling the var. uliginosa. (742.) 



Pyeola chloeantha, Swartz. From New England to Pennsylvania 

 and Wisconsin, and through British America to the Rocky Mountains and the 



