82 



mette River. The soil here is dry both winter and summer on 

 the open south side. On the north side, however, is a heavy 

 wooded area. Among the typical grass flora found on these 

 rocky south slopes the most common species are: Aspr'is caryo- 

 phyllea (L.) Nash; Poa pratensis L. ; Poa annua L. ; Poa com- 

 prcssa L. ; Poa scahrclla (Thurl).) Benth. ; Fcstuca idalwcnsis 

 Elmer ; Festuca niegalura Nutt. ; Gastridimnvcntricosum (Gouan) 

 Schinz and Thell. ; Elyinus Caputmedusae L. ; Elymus glaucus 

 Buckl. ; Sitanion jubatnin Smith; Agropyron teneriim Vasey; 

 Stipa Lcuinwni Scribn. ; Broinus niarginatits Nees ; Bronnis hor- 

 dcacciis L. ; Bromus villosus Forsk. ; and Agrostis Hallii \ asey. 



The plants of Cynosurus echinatus were on the southwest lower 

 slope of the butte, overlooking the railroad. There were a large 

 number of fine specimens along a dry ditch and a road which 

 leads to the summit. They were growing thickly together, but 

 only in this one restricted location. Last summer the number had 

 increased, and the dead stalks of the year before could still be 

 easily recognized. 



I was greatly surprised in June, 19 19, to find a few specimens 

 also on the lower west side of Spencer's Butte, along a narrow 

 trail, in a cleared space overgrown with grass and surrounded on 

 all sides by dense woods. This butte is 2,063 feet high and is 

 about six miles south of Eugene. On both buttes this grass was 

 found in rather dry, rocky soil. Prof. J. K. Henry has included 

 this species in his Flora of Southern British Columl)ia on page 37, 

 and writes me in. regard to it: "Cynosurus echinatus is a not un- 

 common introduced grass on dry hillsides or even occasionally in 

 gardens near Victoria." He first collected it there about five 

 years ago. 



In appearance C. ccliinatus is not very similar to C. cristalus, 

 which is sometimes found on parkings in Eugene. The spikelets 

 are somewhat alike in the two species, but the awns of C. echinatus 

 are long and produce a prickly or hurry effect which is not present 

 in C. cristatus. In the former the panicles are long and slender, 

 while in the latter they are compact and hardly over 3 cm. long. 

 Both species are slender and rather inconspicuous. C. echinatus 



