218 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. [1885. 



BORRAGINAOE^. 

 Mertensia paniculata, Don. 



Fifty miles above Nusbagak. June 25. 



SCROPHULARIACE^. 



Mimulus luteus, Linn. 



July 27. 

 Pedicularis euphrasioides, Stephan. 



No date or locality giveu. 

 Pedicularis Sudetica, Willd. 



Juue 20. 

 Pedicularis LangsdorfTii, Fisch., var. lanata. {P. lanaia, Willtl.) 



Juue 20. 

 Rhinanthus Crista-galli, Linn. 



July 27. 



LENTIBULARIACE^. 



Pinguicula villosa, Linn. 



Near Nushagak. June 28. 



POLYGONACE^. 

 Polygonum aviculare, Linn. 



About the station, no date given. 

 Rumex longifolius, DC. (li.domesticus, Hart. ofRotbr. Fl. Alaska.) 



No date or lo(;ality. 



CUPULIFER^. 



Betula nana, Linn., var. glandulosa. (B. glmuhdosa, Miclix.) 



Alter a careful examination of a considerable suit of specimens, I am 

 convinced tbat tliere is no clear line of denjarcation between tbe B. nana 

 of Europe and tbe so-called B.glandulona of American autbors. Among 

 a set of specimens of typical B. nana from various parts of Europe a 

 few have sligbtly glandular brandies, and a full suit of (/lamkilosa sbow 

 considerable variation in this respect also. In the characters of the 

 aments and fruits they seem to grade into each other. 



In flower June 10. 

 Betula occidentalis, Hook. 



A fine set of specimens, both in flower and fruit. In flower June 9, 

 along the river six miles above Nusbagak; in truit August 23, at the 

 mouth of the Allokuagik River. 

 Alnus viridis, DC. 



Immature flower. Juue 4 and 8. 



SALICINE^. 



(Identifietl by Mr. M. S. Bebb.) 

 Salix glauca Linn. 



Poplar grove, three miles south of Nnshag;:ik, June 20. 



