Nelson Some New Western Plants and Their Collectors. 35 



Colorado has been the collecting ground for scores of tourists 

 during the last quarter century, but even so, it is quite likely 

 that her flora is still only partially known. Among those who 

 occasionally go to the West to spend a summer's vacation in 

 the delightful work of collecting, one should mention Mr. W. 

 S. Cooper, of Detroit, Michigan (at present at Johns Hopkins). 

 For several years past some portion of his summer's vacation 

 has been spent in the Rocky Mountains of Colorado, Utah or 

 Wyoming. 



Several of the men mentioned above have kindly shared their 

 plants with the writer, who has found much pleasure in joining 

 these collectors in their studies. As a result of these studies it 

 has seemed necessary to designate certain specimens as new 

 species. The descriptions of these proposed species are offered 

 below r . The types are all deposited in the Rocky Mountain 

 Herbarium. 



Fritillaria lunellii sp. nov. 



Bulb of many rather thin scales, 6-12 mm. long : stem slender, 2-4 dm. 

 high : leaves 4-6, distributed in one of the following ways, all in one ver 

 ticil ; all but one in the verticil ; or in two verticils of 2-4 leaves each ; the 

 lowest leaves always above the middle of the stem, broadly linear-lanceo 

 late or oblong-lanceolate, tapering gradually to the obtusish apex, 3-4 cm. 

 long : floral bract similar to the leaves but smaller (2-3 cm. long) : ped 

 uncle rather slender, 7-12 cm. long: flowers one (rarely two), drooping on 

 short slender pedicel : perianth segments narrowly oblong or oblong-lan 

 ceolate (in shape much like the leaves), obtusish, 2-3 cm. long, twice as 

 long as the slender filaments, dark-purple on the ontside, purple mottled 

 with yellow within : 'anthers large, oval : style cleft only one-third its 

 length or less : the thickened linear stigma somewhat recurved : capsules* 

 pyriform or broadly obovoid, about 15 mm. long, smooth, furrowed rather 

 than angled at the sutures. 



I feel that it is only fitting to name this in honor of its discoverer, who 

 has not only supplied me with the specimens but has pointed out many of 

 the characters given above. Type bears the accession No. 56,200. It was 

 collected in the timbered foothills of Mount Hood, Wasco Co., Oregon, by 

 J. Lunell, M. D., of Leeds, North Dakota. 



Roripa pectinata sp. nov. 



Glabrous winter annual, with vertical taproot, most of the plants branch 

 ing freely, beginning to blossom when quite small but in fruit 1-3 dm. 

 high : winter crown leaves small, oblanceolate, from entire to pectinately 

 toothed, withering early : those of the stem and branches larger, 2-6 cm. 



* There is a possibility of error as to the capsule since the single fruiting specimen 

 was secured at another time. 



