1904.] NATURAL SCIENCES OF PHILADELPHIA. 117 



(19) R. nutkana Presl. 



Alaska to Utah, but there is no evidence that it occurs as far south as 

 New Mexico. Rydberg says : " Recognized by its large flowers,, stout 

 spines, doubly serrate firm leaves and large fruit." This suggests 

 sayi, but the latter has thin leaves, and lacks the infrastipular spines 

 of nutkana. 



(20) R. macdougali Holz. 



A species of the northern Rocky ^Mountains, distinguished from 

 nutkana by the densely bristly peduncles, and the infrastipular spines 

 much smaller. 



(21) R. melina Greene. 



A Colorado species confused with nutkana, but distinct by its small 

 glabrous foliage, short and hooked prickles, and sepals neither long- 

 attenuate nor glandular on the back. The fruit is very large, somewhat 

 obpyriform, nearly 1^ inches in diameter. Perhaps the Utah '' nut- 

 kana" will also be found to belong here. 



There are still other species of Cinnamomese, but from their distri- 

 bution and characters they do not require consideration here. It is 

 hoped that the above summary will facilitate the identification of 

 Rocky Mountain roses. 



Some New^ Mexico Roses. 



(1) Manzanares Valley, New Mexico (Mary Cooper). A rose with 

 large leaves, having the characters of R. sayi, but the serrations only 

 very slightly compound. Inflorescence one-flowered, flowers bright 

 pink. A moderate number of prickles on flowering branch. The 

 lateral leaflets are about 30 mm. long and 20 broad. I refer this to 

 R. sayi, variety. 



(2) Santa Fe, New Mexico (Cockerell) ; in herb. N. M. Agric. College. 

 Flowering stems with numerous slender straight prickles; stems not 

 dark; leaflets often in elevens, cmieiform with broadly rounded ends, 

 very slightly inclined to be doubly serrate, about 28 mm. long and 18 

 broad, color on both sides nearly the same ; sepals narrow, covered with 

 large Icnobbed gland-hairs; fruit red, rather large, obpyriform, almost 

 globular; sepals persistent. This runs to R. arkansana in Cr^pin's 

 table ; it is nearly the same as R. suffulta, differing by the very obtuse 

 leaflets and more glandular sepals. Can this be the genuine R. fendleri? 



(3) White Mountains, New Mexico (Turner) ; in herb. N. M. Agric. 

 College. This was found labelled "fendleri," but it is very different 

 from the Santa Fe plant by its dark flowering sterns^ with few but 



