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242 Nelson : New Plants erom Wyoming 



4709, June T4, 1898. Also collected in 1897 at Point of Rocks 



no. 3085. 



Pentstemon Utahensis (Wats.) 



P. glabcr Utahensis Wats. Bot. King, 217. 



Dr. Watson placed this as a variety because there were seem- 

 ingly intermediate forms connecting this with related species. 

 The several authentic specimens of it at hand from various parts 

 of the Rocky Mountains show certainly as much constancy in 

 characters as any of the recognized species. Its tall, strict stems, 

 with long internodcs and erect, relatively narrow leaves ; its rather 

 crowded, long petioled basal leaves, and its greatly elongated in- 

 florescence puts it in sharp contrast to P. glabcr Pursh. 



Of the more recent collections that well illustrate its characters 

 are Baker, Earle and Tracy's specimens from Mancos, Colo., no. 

 405 and the writer's nos. 1093, 1559 and 4102, from various parts 

 of Wyoming. 



Phacelia campestris 



. Annual, minutely pubescent, scarcely glandular, branched from 

 the base, the 2-6 main branches decumbently divaricate at base, 

 these more or less branched and with ascending tips, main branches 

 8-12 cm. long: leaves oblong in outline, 1.5-3 cm. long (includ- 

 ing the short petiole), deeply pinnatifid, the 3-5 pairs of 'segments 

 oblong, obtuse, entire ; the terminal lobe usually three-toothed : 

 raceme simple, at first short and crowded, later open, the few 

 flowers (6-12) rather uniformly distributed on the 4-7 cm. long 

 rachis : pedicels very short : sepals oblong or narrowly spatulate, 

 minutely hispid on the margins, in anthesis a third longer than the 

 corolla, lengthening slightly in fruit : corolla white, 2-3 mm. long, 

 short tubular, the rounded lobes | of its whole length, appendages 

 ver>' narrow : filaments dilated downward, about the length of the 

 corolla-tube, subequal : style equaling or shorter than the ovary, 

 much shorter than the mature capsule, divided one half its lengtl 

 capsule finely pubescent, oblong, obtuse, 3-4 mm. long, a little 

 .shorter than the sepals: seeds 10-14, elliptic, compressed, trans- 

 versely ridged. 



To be compared with P. Pocslana Torr. from which it differs in 

 being much less glandular, in having a corolla shorter than the 

 calyx, iiearly equal stamens and fewer seeds. 



It was secured on the open plains, in loose sandy soil about 

 the roots of sage-brush, near Granger, June 14, 1898, no. 4606. 



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