8 BULLETIN UNIVERSITY OF MONTANA 



Botrychium ternatum var. silaefolium (Presl. Rel. Haenke 1 76 (1830) as 

 species). Bigfork and Swan Lake. This also grades directly into the type. 



Equisetum palustre L. Common at Bigfork, the Mission and Hot Springs; 

 also on i\IacDougal peak:. 



Equisetum Telmateia Ehrh. This grows in very wet meadows Slwan 

 Lake, marsh east of Poison, Dayton. 



Isoetes Howellii Eng. Abundant at Bigfork in overflowed flats. First 

 collected by Prof. Cowles's party and referred to I. Bolanderi. Also by Fitz- 

 patrick at Swan Lake. 



Lycopodium Selago L. Lake McDonald, Umbach, Sperry Glacier and 

 Blackfoot Glacier, alpine. 



Lycopodium obscurum L. Belton. 



Lycopodium complanatum L, Frequent in dark woods, Bigfork, Swan 

 Lake, Belton, Gunsight Lake. 



Selaginella rupestris var. densa (Rydberg Fl. Mont. 17 (1900) as species). 

 This is common and varies directly into the type. 



Selaginella rupestris var. Columbiana. Leaves and bracts rather abruptly 

 contracted into a short awn. Stems diffuse and slender, much as in S. rupin- 

 cola. Spikes sharply angled. Macrospores favose. Flathead Lake at Bigfork 

 and Snake River, Idaho, near Weiser. 



Taxus brevifolia Nutt. Sylva 3 86 t. 108 (1849). Yew. Ground Hemlock. 

 This cannot be separated from the eastern T. Canadensis except by the very 

 slightly looser sterile catkins. The habit is the same. It is separated from 

 the T. baccata of Europe by the broader and blunter leaves. Our plant is a 

 straggling or prostrate shrub 1-20 feet high, with trunk mostly less than an 

 inch thick. Leaves dark green above and shining, lighter but not white be- 

 low, narrowed at base, 13-25.5 mm. long, about 2 mm. wide, persistent, sharply 

 acute at both ends, appearing flat, but convex above and concave below, 

 with twisted petiole, the arrangement and color of upper side resembles that 

 of Abies grandis, and the lower prostrate branches of which it is easily 

 mistaken by the novice, especially since it often grows with the fir. The 

 petiole is about 2 mm. long, the upper half being round except at tip, then 

 it widens to an oblong and flat and adnate area which joins the leaf ridge 

 of the twig as a prolongation of it. At maturity the narrow free part of the 

 petiole breaks off irregularly, leaving a seeming and oblique knot simulating 

 the cushion of the spruce, but has no scar at the tip as that does, because 

 the leaf is not jointed to it there. The season's twigs are apple green, smooth, 

 last season's twigs are reddish brown, the older ones browner, and at last 

 flaking up in papery layers. The old bark of the main trunk is rather pur- 

 plish heneath and flaky, like Thuya, but in few and short layers. It is a 

 slow grower, with small rings; wood white with dark red center and in- 

 clined" to be translucent, hard. The leaves are a kind of yellowish green 

 color. The flowers for the next season form the fall before. This grows at 

 Huckleberry Spring and along the Swan Lake road for half a mile or so; 

 also at the Hemlocks, preferring damp and dark woods. Collected als^, yy 

 Elrod at the Hemlocks. The berries are red, juicy and sweet, with a resin- 

 ous flavor, about 6.5 mm. long, soft and open at the tip, single in the axils. 

 The branches iwith the leaves have the same flat, -wand-like appearance of 

 the fir and divide in much the same way, though they are more open and 

 slender. It ranges northward and westward and in the Puget Sound region 

 attains the dimensions of a tree. With us it is a low and straggling shrub 

 forming dense thickets when several plants grow together, the branches 

 matting down loosely with the snow. It is common in the mountains from 

 Mission Creek to the British line and is a very bad shrub for mountain 

 climbers because of its being so smooth and decumbent. McDonald Lake, 

 Umbach. 



