SKETCH OF THE FLOEA OF ALASKA. 



GRAMINE^, 



Hordeum pratense, h., Sitka and Ounalashka. 

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

 Elymus Sibiricus, L., Sitka. 

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



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

 Triticum repens, L., Kotzebue sound. 



Festuca ovina, L., Kotzebue sound. 



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

 with F. ovina. 



F. subulata, Bong., Sitka. 

 Bromus ciliatus, L., Kotzebue sound. 

 B. subulatus, Ledeb., Ounalaslika. 

 B. Aleutensis, Trin., Ounalaslika. 



B. Sitcliensis, Bong., Sitka. 



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

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



P. flavicans, Ledeb., Ounalashka. 



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



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

 include P. abbreviata, Br. 



P. rotundata, Trin., Ounalashka. 



P. nemoralis, L., Kotzebue sound. 



P. annua, L., Sitka. 



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



Colpodium I'ulvum, Ledeb., Kotzebue sound. 



Dupontia psilosantha, Rupr., Kotzebue sound. 



Catabrosa aquatica, I3cauv., Sitka; fide Ledebour 



C. alg'ida. Fries, Kotzebue sound. 

 Atropis maritima, 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. 



Hierochloa l)orealis, B. and Scliult., Ounalashka and Kotzebue sound. 



II. al}»ina, B. and Scliult., Ounalashka, Kotzel>ue sound, and Arctic coast. 



Trisetum subspicatum, Trin., Ounalashka and Kotzebue sound; and from 

 Point Barrow to Mackenzie river, Pullen. 



T. sesquiflorum, Trin., Ounalashka. 



T. cernuum, Trin., Sitka. 



Aira caspitosa, Trin., Ounalashka, and main land. 



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

 o^ er the specimens of A. cfespitosa in Herb., Gray, I find one from the Sandwich 

 islands and another from Fort Vancouver, both of which appear identical with 

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

 as Aira ca-spitosa, var. Bottnica, I have lal)elled the Sitkan specimens in accord- 

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

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



t Not being able to fiud fretum Seiijawin in Arctic American maps, I applied to Prof. 

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

 (J4° 45' north, longitude 172'^ 35' west, between Kayne island and the Asiatic shore. Misled 

 by Ledebour placing the strait on the American siJe, I concluded it must be the Seguam pass 

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

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

 regard to the same locality. ' 



