Plantae Andrewseae. 177 



Eustoma andrewsii sp. nov. 



Perennial from short vertical seraifleshy roots with a somewhat enlarged 

 crown or caudex ; the old steins occasionally persisting but apparently 

 usually separating from the crown by an articulation ; stems simple below, 

 more or less fasciculately branched above, 2-4 dm. high ; leaves from 

 elliptic-oblong below to lanceolate and acute above, mostly 3-nerved, 2-4 

 cm. long; the next year's crown leaves appearing in the autumn as rosettes 

 which are persistent and evergreen ; peduncles ebracteate, 3-8 cm. long ; 

 calyx deeply cleft, less than half as long as the corolla, the slender acumi- 

 nations of its lobes being two-thirds of its length ; corolla a deep purple, 

 3-4 cm. long, its tube nearly one-third of its length, its lobes elliptic-obo- 

 vate; stamens short, the filaments rather thick, anthers sagittate, erect; 

 style stout ish, scarcely longer than the ovary and shorter than the mature 

 capsule. 



My attention was recently called to this beautiful species by Mr. Andrews, 

 who pointed out some of the essential distinctions between this and E. 

 Russellianum (L.) Griseb. Its perennial character he tested in the field. 

 " Of several hundred plants not one had failed to produce the rosette of 

 leaves or buds for the next year's growth." Attention may also be called 

 to the smaller deep-purple corolla and the absence of peduncular bracts. 



Secured near Boulder, Colo.. 1904. I have the same from Mr. C. S. 

 Crandall, " Meadow at LaPorte, altitude 5,500 ft., Aug. 21, 1895." 



Pleurogyne fontana sp. nov. 



Glabrous throughout ; stems slender, simple or with a few narrower erect 

 branches, 1-4 dm. high ; leaves linear, mostly narrowly so, thin with dis 

 tinct midrib and two faint lateral nerves, 20-25 mm. long, the lowest soon 

 deciduous and never rosulate ; flowers in a narrow somewhat panicled 

 raceme, having long, very slender pedicels, pentamerous; bracts foliar; 

 sepals green, linear, resembling the bracts but shorter, usually 3-nerved 

 as are also the bracts ; corolla often surpassed by the sepals, its lobes 

 elliptic-oblong, sub-acute, about 5-nerved ; stamens half as long as the 

 corolla-lobes ; the anthers oblong; mature capsule translucent, numerously 

 ovuled, ultimately as long as the sepals. 



It has been customary to call the Pleurogyne of the Rocky Mountains 

 P. rotata. This, I think, is not justified. That species seems to skirt the 

 northern boundary of the continent, from Labrador and Greenland to 

 Alaska. I can find no mention of it in the Rocky Mountains. Rydberg 

 makes no mention of it in the Flora of Montana nor Ho well in his Flora of 

 the Northwest. Macoun gives it the distribution in the British Provinces 

 previously indicated by Gray. There seems to be no good reason for the 

 statement " and south in the Rocky Mountains to Colorado." The Colorado 

 species which has passed as P. rotata and which here characterized under 

 the name P. fontana seems to be closely circumscribed, being probably 

 confined to north central Colorado and the adjacent border of Wyoming. 



