410 PROCEEDINGS OF THE AMERICAN ACADEMY 



ciliata ( Vulpia Munro). A little of the var. diver gens Thurber was 

 also collected. A polymorphous species, which Professor Thurber in- 

 clines to unite with the European F. delicatula Lag. 



640. Festuca occidentals Hook. 641. Variety less evolute, 

 approaching F. duriuscula L. 



642. Festuca scabrella Hook. Fl. Bor.-Am. t. 233. 



643. Festuca ovina L. var. Dwarf alpine form. 



644. Brizopyrum spicatum Hook. & Arn. B. boreale Presl. 



645. Bromus (Schedonorus) subulatus Griseb. in. Fl. Ross. 2, 

 p. 358. Festuca suhulata Bongard Veg. Sitka, p. 55; Griseb. 1. c. 

 p. 354. Our specimen from Chamisso's collection (Unalaschka) is 

 named " Festuca acerosa Trin." A younger form, apparently, also from 

 the St. Petersburg Academy, has a printed ticket, " Festuca altaica 

 Trin. : Alaschka." This rare and ambiguous grass seems to belong 

 to Bromus, rather than to Festuca. 



646. Bromus (Ceratochloa) carinatus Hook., fide Thurber in 

 litt. I do not find the name. 647, 648. Forms of the same. 



649. Bromus racemosus L. ; a depauperate form, doubtless intro- 

 duced. 



650. Triticum repens L. : a slender form of it or T. caninum. 



651. Elymus Sibiricus L. 652. A form with downy culm and 

 leaves. 653. A slender and smooth variety. 



654. Elymus Sitanion Schult. Sitanion elymoides Raf. 



655. Elymus condensatus Presl, var. E. dasystachys Trin. ? 



656. Hordeum pratense Hudson. 657. A glaucous form of it. 



658. Lolium perenne L., var. multiflorum. L. multiflorum 

 Lam. Italian Ray Grass. Doubtless introduced. 



659. Danthonia spicata Beauv. A Californian form with larger 

 spikelets and leaves. 



660. Danthonia Californica Bolander, Proc. Calif. Acad. 

 D. unispicata Munro in herb, appears to be a reduced form of this. 



661. Trisetum subspicatum Beauv., var. molle Gray ; a short 

 but very downy form. 662. A tall but almost glabrous form. 



663. Trisetum cernuum Trin. ; Hook. Fl. Bor.-Am. 2, p. 244. 



664. Aira danthonioides Trin. 665. A. elongata Hook. 1. c. 

 t. 228. The two seem somewhat too closely allied. 



666. Aira latwolia Hook. 1. c. p. 243, t. 227. 



667. Aira (Deschampsia) c^espitosa L. A taller and a lower 

 form of the species. 



