' 119 



Shrubs 

 Azalea nudijlora, in leaf; Ceanothus americanus, very abundant on Brush Moun- 

 tain, in flower; Cotnptonia peregrina, also more common on Brush Mountain, in 

 leaf; Gaylussacia baccala, in fruit; Kalmia latifolia, in fruit, Oxycoccus erylhrocar pus , 

 on Bald Knob; Rosa virginiana, in flower; Rubus odoratus, in flower; Sambucus 

 canadensis, near the Cascade, in fruit; and Viburnum alnifolium, in fruit. 



Trees 

 Acer pennsylvanicum, A. rubrum, A. saccharinum, and A. saccharutn; Ahiiis 

 rugosa; Carpinus caroliniana; Celtis occidentalis; Cynxoylon floridum; Fagus grandi- 

 folia; Fraxinus americana; Hamamelis virginiana; Hicoria glabra and H. ovata; 

 Juglans cinerea and J. nigra; Juniperinus virginiana; Liriodendron Tulipifera; 

 Magnolia acuminata; Nyssa sylvatica; Oxydendrum arboreum, in flower; Pinus 

 rrgida and P. Strobus; Prunus americana; Quercus alba, Q. coccinea, Q. palustris, 

 Q. Prinus, Q. rubra, and Q. velulina; Robinia Pseudo-Acacia, badly attacked by 

 Fulvifomes Robiniae; Sassafras Sassafras; Sorbus americana, on Bald Knob; Tilia 

 a^nericana, in flower; Tsuga canadensis; and Uhnus am.ericana. 



As may be judged from the above account, the flora of Moun- 

 tain Lake is similar to that described in Torreya a few years 

 ago for Apple Orchard Mountain in the Blue Ridge, but the 

 Carolina rhododendron and a few other striking elements are 

 absent. 



W. A. MURRILL 



NOTES ON SCLEROPOA 



By J. C. Nelson 



At the end of a rambling series of notes on "Some Oregon 

 Exotics" in the American Botanist for November, 191 8 (24: 

 129), attention was called to the discovery of Sderopoa rigida 

 (L.) Griseb. at Salem, Oregon in May, 191 7. Since the plants 

 found at that time were growing precariously in the crevices of 

 an old brick building in the business district, and were looked 

 upon with extreme disfavor by the street-commissioner, it did 

 not seem prudent to regard the species as a permanent addition 

 to our flora. Since that time the building has been changed from 

 a junk-shop to an automobile-station, and an attempt has been 

 made to eradicate the weeds by which it was originally sur- 

 rounded and restore the neglected street-parking; but in spite of 

 all these "improvements" the grass has stubbornly reappeared 

 each season, and this year (1920) has established itself profusely 



