lobes, and of a salmon colour, fading to purplish. P. 

 folioswsimurn., A. Gray, is considered by Mr. Greene as the 

 nearest ally of ftavum. I have gathered this species in the 

 Wasatch Mountains, Utah, in company with Dr. Gray; also 

 at La Veta, near the borders of New Mexico, at an elevation 

 of 9000 to 10,000 feet ; it has narrower leaves, smaller white 

 or blue flowers, and rounded corolla-lobes. None of the 

 above species have been figured in any horticultural pub- 

 lication. 



P. flavum is a native of the highest slopes of the 

 Pinos Altos Mountains of New Mexico, where it grows 

 with Delpliinum glaucum, Watson, and Evpatorium granduhn- 

 tatvm, DC, and where it was found by Mr. Greene in flower 

 and fruit in September, 1880. The specimen figured hero 

 was communicated to the Cambridge Botanical Gardens 

 by Mr. Lynch in July 1 of the present year. The species 

 has also been in cultivation, and flowered at Kew during 

 the last two years. — J. V. R. 



Fig. 1, Vertical section of flower ; 2, calyx, style and stigmas ; 3, portion of 

 corolla and stamen ; 4, ovary and disk ; 5, vertical section of the same -.—all 

 enlarged. 



