72 CONTRIBUTIONS TO THE NATURAL HISTORY OF ALASKA 



PRIMULACE-51. 



Primula nivalis, Pall., Unalashka, Saint Lawrence, Kotzebue Sound. 



P. striata, Hornem., after J. D. Hooker, Dr. Rotkrock includes under this species P. home 

 manniana and P. mistassinica, both of C. and S. and of Michx. Kotzebue Souud. 



Androsace chamcejasme, Willd., Kotzebue Sound to Wainwrigkt Inlet. (Plentiful at Una- 

 lashka, rarer at Attu. Grows among the drier rocks on the faces of cliffs. T.) 



A. septentrionalis, L., Kotzebue Sound and Chainisso Island, Fort Yukon. 



A. villosa is stated by Ledebour to have been found at Kotzebue Sound. It is likely an over- 

 sight, as Hooker and Arnott do not contain it in their list of plants collected there. 



Dodecatheon meadia, L., Sitka, Kotzebue Sound, and Cape Lisburne. Dr. Rothrock includes 

 in this species B. integufolium and D.frigidum, and regards thein as varieties of a widely distrib- 

 uted polymorphic species. (Common at Saint Michael, Unalashka, Atkha, and Attu. At Saint 

 Michael's I have known the ground to be covered with a patch of snow on the 1st day of June, 

 which on the 12th had melted, and this plant was then in blossom. At Atkha Island I obtained 

 specimens at an elevation of 1,500 feet, where nothing but scattered stalks of this plant would grow 

 on the barren areas, having little soil mixed with the sharp-edged stones. The plants in such sit- 

 uations were scarcely an inch in height. T.) 



Glaux maritima, L., Sitka. 



Trientalis europcea, L., Sitka, Norton Sound. 



(T. europcea, var. arctica, Gray. Grows abundantly in wet places among all the Aleutian 

 Islands. T.) 



GENTIANACEiE. 



Gentiania amarella, L., Sitka. 



G. acuta, Michx., Unalaska. 



G. tenella, Roltb., Kotzebue Souud. (Common among the Aleutian Islands, but rare at Saint 

 Michael's. T.) 



G. detonsa, Fries., Point Barrow to Mackenzie River, Fort Yukon. 



G. propinqua, Richards., G. ruriclciana. Kotzebue Sound, Point Clarence, Norton Souud. 



G. aleutica, Cham., Unalashka. 



G. prostrata, H^enke. Unalashka, Kotzebue Sound. (Common among the Aleutian Islands. 

 Grows in wet situations. T.) 



G. glauca, Pall., Kotzebue Sound, Wainwright Inlet. 



G. platypetala, Griesb., Sitka. 



G. douglassiana, Bong-., Sitka. 



Pleurogyne rotata, Griesb., Kotzebue Sound, Buckland River, Arctic coast. (Rather common 

 among the high grasses on dry hill-sides at Saint Michael. Flowers white. T.) 



Swertia perennis, L., Kadiak. Dr. Kellogg also obtained S. perennis L., var. obtusa from 

 Kadiak. 



Villarsia crista-galli, Griesb., Sitka. 



Mepyanthes trifoliata, L., Unalashka, Sitka. 



POLEMONIACE.5!. 



Phlox sibirica, L., Kotzebue Sound. 



Polemonium cairuleum, L., Norton Sound to Point Barrow ; islands of Saint George, Una- 

 lashka, and Ohamisso ; Fort Yukon. Dr. Rothrock recognizes but two species of this genus 

 belonging to northern North America, the one, P. reptans, L., which is well marked, and the 

 other P. cceruleum, L., as made up of all the others. The numerous forms of the latter aggregate 

 species are easily connected. Even P. pulchellum, Bunge, which is perhaps the best marked 

 variety, shades off by invisible gradations into the others. (Common throughout the Aleutian 

 Islands. Grows to 3 feet in height. Flowers blue. T.) 



Diapensia lapponica, L., Saint Lawrence. (Obtained only at Atkha Island among the clefts of 

 rocks on the faces of cliffs. T.) 



