

very' light-yellow to pink 



ntly prolong-ed 1 



intermixed with glandular 

 u^^ulc^. uic peuiceis Dciow tiie joint have pustular and often 

 scattered long hairs, but are smooth with age. What I take 

 l^!.^^^ ^-^P^ ^""^ "">' specimens from Payette Lake, Idaho, at 

 5000 feet elevation, July 27, 1899, and Lethbridge, Alberta, col- 

 lected by Diehl, July 21, 1899. 



Eriogonum andrcsaceum var. Piperi (Greene Fitt. 3 263 

 ns species). This differs from the type in the oblong- 

 oblanceolate to oblanceolate leaves, 2-4 inches long, and the 

 liovvers manifestly prolonged into a stipe above the joint and 

 golden yellow. This I have from the same locality as the type 

 and also from the Cuddy Mts., Idaho, at 6000 feet elevation, 

 July 11, 1899. 



Eriogonum pyrolaefolium is instantly recognized by the 

 fuscous and kinked hairs of the flowers and intermingled 

 .elands and the black anthers. The pedicels are the same as in 

 E. androsaceum. The var. coryphaeum is only a form with 

 flowers 2-3 lines long. 



Eriogonum aridum Greene Pittonia 3 200. Greene says 

 of this "perianth of a dull cream-color decidedly narrower than 

 in the allied species," ''angles" of akenes "retrorsely hairy at 

 summit." "Peculiar to the arid foothills above the Humboldt 

 Wells." "Quite distinct from both" ■ E. umbellatum and sub- 

 nlpinum "in floral character and belonging to a dTy desert re- 

 gion where neither of these species occurs or would be ex- 

 pected." Now any collector of E. umbdlatum knoAvs that the 

 flowers vary in every mountain range from nearly white to 

 golden yelloAV and generally turn pink with age at all eleva- 

 tions, and that in fruiting specimens like Greene's the sepals 

 elongate and become cuneate, and that retrorsely bearded 

 akene tips are almost generic. There is not a character given 

 for this species that E. umbellatum does not have. Further- 

 more. Humboldt Wells is not a dry desert region ; the humid- 

 ity there is greater than at any point between the Sierra Ne- 

 vadas and the Oquirrh Mts., Utah. This species is not peculiar 

 to that region and E. umbellatum is very common there at all 

 elevations, while E. subalpinum undoubtedly occurs on those 

 mountains, as it is everywhere on the moist tops of the high 

 mountains in the Great Basin. This same proposed species 

 occurs on Star Peak, western Nevada, at 9000 feet elevation. 



