﻿Nelson : New Plants from Wyoming 283 



Scutellaria virgulata. 



Perennial from slender oblique rootstocks, the nodes of which 

 are often marked by scales ; stems puberulent, simple, one or more 

 from the crown of the rootstock, slender, strict or sometimes curved, 

 leafy throughout, 2—3 dm. high ; leaves entire, nervose, bright 

 green, puberulent under a lens, nearly sessile ; lower stem leaves 

 small or rarely wanting, obovate to oblong, 1-2 cm. long, much 

 shorter than the internode ; middle stem leaves oval to oblong, ob- 

 tuse, about 3 cm. long, equalling the internode ; upper stem leaves 

 from oblong to lance-linear, longer than the internodes, appearing 

 crowded, obscurely glandular ; flowers blue, borne singly in the 

 axils of the upper pairs of leaves, resinous-puberulent ; pedicels 

 about one-half as long as the calyx ; calyx green even as to the 

 crest ; corolla-tube gradually dilated upward, about 2 cm. long, 

 glabrous in the throat ; nutlets minutely tuberculate. 



Closely allied to 5. Brittcmi Porter but with slenderer root- 

 stocks, longer, slenderer, more virgate stems and fewer flowers. 

 In S. Brittofii the internodes are uniformly shorter than the leaves, 

 in this only the upper leaves exceed the internodes. 



In loose soil among the stones on the partly wooded summit 

 of the Laramie Hills at about 9000 feet. Type specimen in the 



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RUMEX TUBEROSUS. 



Perennial by a horizontal woody rootstock on the under side 

 of which are borne large fascicled, oblong-elliptic tubers ; glabrous 

 throughout ; stem stout, nearly erect, conspicuously grooved, 2-4 

 dm. high ; leaves large, moderately thick, somewhat crisped on th. 

 edges, crowded at the base, smaller and more distant upwards, all 

 petioled, lower oblanceolate-oblong; 10-15 cm. long, 3-5 cm. wide, 

 upper lanceolate ; ocreae large and thin ; racemes erect ; bracts 

 few, leaf-like, lanceolate, seemingly deciduous, the inflorescence at 

 length naked and interrupted ; calyx red, conspicuously winged at 

 maturity ; pedicels filiform, as long or longer than the wings ; wings 

 cordate, 10-13 mm. long, no callosities, deep red, lighter with age ; 

 style branches divergent ; achene 10 mm. long, smooth with mar- 

 gined angles. 



This species seems most closely allied to R. vcnosus Pursh 

 which it simulates in habit. It is, however, a larger plant while 

 the win- of the fruit are smaller. It is strikingly separated from 

 tins, and all other species known to the writer by its large tuber- 



