253 



the top of Long Baldy, Little Belt Mountains, and by Frank 

 Tweedy, 1887, in Park County, Montana, I can easily see that P. 

 viscosum Nutt. is a near relative to P. confertJim Gray. It has the 

 same general habit and inflorescence. The corolla is, however, 

 shorter, more open-funnelform and dark blue and the segments of 

 the leaves aire much smaller and rounder. The plant is very 

 strong scented. 



What Dr. Gray regarded as P. viscosjiui, I think I know, as 

 there is a specimen in the Torrey herbarium, received Irom Dr. 

 Gray and labelled in his handwriting. This specimen agrees also 

 full\ with Dr. Gray's description. It should be known under the 

 name 



POLEMONIUM PARVIFOLIUM Nutt. mSS. 



p. Mexicamim Nutt. Journ. Acad. Phil. 7: 41. 1834. Not 

 Cerv. 



P. viscosum Gray, Proc. Am. Acad. 7: 280. Not Nutt. 



I have also examined Nuttall's type of P. Mexicajiuni col- 

 lected by Wyeth, on the Flathead River. It differs from Gray's 

 P. viscosum in no respect except that the calyx- lobes are a little 

 longer. Nuttall himself has changed the name on the label to 

 pmvifolium probably because he had found that the name P. Mexi- 

 camim had been used before. That Gray had seen this specimen 

 can be seen from a postal card from him, pasted on the same 

 sheet, dated January 6, 1880, and on this, he states that he re- 

 garded it as being near P. piimilum var. pidcJicllum, and adds : " If I 

 had to do it over, I would add a var. parvifolium to it." As P. 

 Mexicamim and P. pannfolium are both based on the same speci- 

 mens it is strange to find that Dr. Gray in 1886,* makes the fol- 

 lowing remark under P. foliosissimum . " To this probably belongs 

 P. Mexicanum Nutt. Journ. Acad. Philad. 7 : 41, from the northern 

 Rocky Mountains." It is evident that the Nuttallian specimens 

 of P. Mexicamim both in the Philadelphia and the Torrey herbaria 

 belong to the same species as Gray's P. viscosum, which is a very 

 near relative of P. pulchellum, at least as that species is under- 

 stood in America, differing mainly in the smaller flowers. Flod- 

 man, Spanish Basin, nos. 739 and 740. 1896. 



*Syn. Fl. 2: part i, Suppl. 412. 



