458 SKETCH OF THE FLOEA OF ALASKA. 



GRAMINE^. 



Hordeum pratense, L., Sitka and Ounalashka. 

 H. jubatura, L. ; Fort Yoiikon, Antoine Houle. 

 El3'mus Sibiricus, L., Sitka. 

 E. arenarius, L., Norton sound to Point Barrow. 



E. mollis, Trin., Sitka, Norton and Kotzebue sounds. 

 Triticum repens, L., Koti;ebue sound. 



Festuca ovina, L., Kotzebue sound. 



F. rubra, L., Sitka and Kotzebue sound j united by Messrs. Hooker and Gray 

 with F. ovina, 



F. subulata, Bong., Sitka. 

 Bromus ciliatus, L., Kotzebue sound. 

 B. subnlatus, Ledeb., Ounalaslika. 

 B. Aleutensis, Trin., Ounalashka. 



B. Sitchensis, Bong., Sitka. 



Poa stenantha, Trin., Ounalashka, Sitka, and in America Arctica ad Fretum 

 Senjawin, Ledebour Flora Rossica, vol. iv, p. 372. t 



P. flavicans, Lcdeb., Ounalashka. 



P. arctica, R. Br., Kotzebue sound, Ounalashka, and Sitka. 



P. cenisia. All., Ounalashka, Cape Lisburne, and Kotzebue sound. I here 

 include P. abbrcviata, Br. 



P. rotundata, Trin., Ounalashka. 



P. nernoralis, L., Kotzebue sound. 



P. annua, L., Sitka. 



P. pratensis, L., Kotzebue sound and Ounalashka. 



Oolpodiuni fulvum, Ledeb., Kotzebue sound. 



Dupontia psilosantha, Rupi-., Kotzebue sound. 



Catabrosa aquatica, Beauv., Sitka; fide Ledebour 



C. algida. Fries, Kotzebue sound. 

 Atropis niaritirna, Ledeb., Sitka. 



A. angustata, Ledeb., Kotzebue sound. 

 Glyceria aquatica. Smith, Sitka. 



G. glumaris, Ledeb., islands of St. Lawrence and Sitka, peninsula of Alaska, 

 and Kotzebue sound. 



Ilierochloa borealis, R. and Schult., Ounalashka and Kotzebue sound. 



H, alpina, R. and Schult., Ounalashka, Kotzebue sound, and Arctic coast. 



Trisetum subspicatum, Trin., Ounalashka and Kotzebue sound j and fi'om 

 Point Barrow to Mackenzie river, Pullen. 



T. sesquiflorum, Trin., Ounalashka. 



T. cernuum, Trin,, Sitka. 



Aira caespitosa, Trin., Ounalaslika, and main land. 



A. caespitosa, Trin., var. Bottnica ; Sitka, Bischoff and Kellogg. In looking 

 over the specimens of A. csespitosa in Herb., Gray, I find one from the Sandwich 

 islands and another from Fort Van'couvei", both of wliicli appear identical with 

 our forms from Sitka. They having been authentically named by Colonel Munro 

 as Aira csespitosa, var. Bottnica, I have labelled the Sitkan specimens in accord- 

 ance with his determination. Trinius, in Icones Grarainura, in the text fronting 

 his A. flexuosa, var. Bottnica, speaks of an Aira very similar to A. Bottnica 



t Not being able to find fretum Senjawin in Arctic American maps, I applied to Prof. 

 S. F. Baird for a solution of the diflBculty. He informs me it is on the Asiatic side, latitude 

 64° 45' north, longitude 172° 35' west, between Kayne island and the Asiatic shore. Misled 

 by Ledebour placing the straiten the American si Je, I concluded it must be the Soguam pass 

 in the Aleutian island chain. However, as Professor Baird is positive, we may regard the 

 locality as settled. Dr. J. D. Hooker seems to have experienced a similar difficulty in 

 regard to the same locality. ' 



