i 



244 . Nklson: Nkw Plants from Wyoming 



\\ yonilncr on the sage-brush slopes in the foothills. The dense, 

 leafy clumps are both numerous and conspicuous. Observed and 

 collected in several localities, but the before mentioned number 

 from Evanston, May 28, 1S97, is designated as typical. 



Mertensia viridis 



J/, lanccolata viridis Aven Nelson, First Rep. Fl. of Wyo. 158. 



Rootstocks wood}', creeping in the crevices among the rocks ; 

 the crowns sheathed by the dead petioles : stems one or more 

 from each crown, glabrous or sparsely hispidulous, decumbent at 

 base, slender and rather weak, 2-4 dm. long : leaves bright green, 

 glabrous below, minutely hispidulous above: radical numerous' 

 4-6 cm. long, from oblong to elliptic, on slender petioles about 

 twice as long as the blade : cauline oblong, becoming smaller and 

 acutish upward : panicle leafy bracteate, many-flowered : pe- 

 duncles and pedicels slender, the former surpassing the foliose 

 bracts : corolla about i cm. long, the tube exceeding the limb and 

 about twice the length of the sepals : filaments narrower than 

 the anthers. 



Since the publication of this plant as a variety of Jf. lanccolata 



DC. it has been collected once more, this time near Dome Lake 



at the summit of the Big Horn mountains, no. 2430. These 



, latter plants show that it is a good species. It is strictly alpine. 



The original collection is no. 160S, Laramie Peak, 1895. 



Lithospermum asperum 



Perennial : root large, wood)-, deep-set, the dark bark exfoliat- 

 ing in thin flakes : caudex rather numerously and slender branched, 

 dark brown with scale-like leaves and exfoliating bark : herbaceous 

 stems numerous, slender, rather brittle, simple or branched, 15- 

 25 cm. long, hirsute, the short whitish hairs divaricate: l' 



ea\'es 



a 



rather numerous, from oblong to linear, the broader tapering to 

 narrow base, all sessile or nearly so, 2-4 cm. long, rough htrsute, 

 rather sparsely so, especially on the upper surface, the hairs short,' 

 tapering from a pustulate base ; flowers on short, very hispid ped- 

 icels, axillary : .sepals linear, about 5 mm. long : corolla yellow, 



tube long, 2-3 cm., lobes oval, crenulate-erose, about V. as Ion 



fc> 



as the tube, crests rather small : stamens inserted about \ the 



length of the tube below the throat : nutlets as In section Batschia 

 End!., not impressed-punctate (if at all .sparingly and minutely so 

 on the ventral side onl}-). 



Having but one collection of this I am unable to state whether 

 It produces more than one form of flowers or not. Since mature 



