146 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



CAPRIOIiA. 



1. Capriola dactylon (L.) Kuntze, Rev. Gen. PI. 2: 764. 1891. Bermuda grass. 



Panicum dactylon L. Sp. PI. 1: 58. 1753. 

 Cynodon dactylon Pers. Syn. 1: 85. 1805. 

 Type locality: "Hab. in Europa australi." 

 Specimens examined: North Yakima, T^ckenhy, August, 1897. 



SCBIBNERIA. 



1. Scribneria bolanderi (Tliurh.) llackol, Bot. Gaz. 11: 105. 1886. 



Lepturus bolanderi Thurb. Proc. Am. Acad. 7: 401. 1868. 



Type locality: "Dry gravelly soil, Russian River Valley, California." Collected by 

 Bolander. 



Range: Washington to California. 



Specimens examined: Near Major Creek, Su/:«for/" 913. 



Zonal distribution: Arid Transition. 



LOLITJM. 



Glumes equaling or exceeding the spikelet without the awns 1. L. temtdentum. 



Glumes shorter than the spikelet 2. L. perenne. 



1. Loliiim temulentiim L. Sp. PI. 1: 83. 1753. 



Type ix)cality: "Habitat in Europae agris inter llordeuin, Linum." 

 Specimens examined: Seattle, Smith 794. 



2. Lolium perenne L. Sp. PI. 1: 83. 1753. Perennial ryegrass. 

 Type locality: "Habitat in Europa ad agrorum versuras solo fortili." 



Specimens examined: Seattle, Smith 786; Montesano, Heller 3981. 



AQROPYRON. Wheat grass. 



Plants densely tufted, seldom producing stolons. 

 Glumes awnless. 



Spikelets flattened, somewhat remote 1. A. sjnccUum. 



Spikelets subterete, close. 



Lemmas long-awned 2. A. richardsonii. 



Lemmas awnless, or very short-awned. 



Spikes slender, 5 to 20 cm . long ; lower glume 5-nerved 3 . ^ . tenerum. 

 Spikes short, 2 to 7 cm. long; lower glume 3-nerved . 4. A. hiflorum. 

 Glumes awned. 



Awns short; glumes lanceolate 5. A. gmdini. 



Awns long; glumes subulate. 



Spike dense; herbage pubescent 6. A. saxicola. 



Spike loose; herbage glabrous 7.-4. Jlexuosum. 



Plants not tufted, producing abundant stolons. 

 Lemma hairy. • 



Spike rather dense; lemmas villous 8. ^. subvillosum. 



Spike loose, elongate; lemmas puberulent 9. A. lanceolatum. 



Lemma not hairy, usually glabrous. 



Leaves scabrous on both sides 10. ^. occidentale. 



Leaves smooth beneath, pubescent above 11.-4. repens. 



1. Agropyron spicatum (Pursh) Scribn. & Smith, U. S. Dept. Agr. Div. Agrost. Bull. 

 4: 33. 1897. Wheat bunchgrass. Plate XIX. 



Festuca spicata Pursh, Fl. 1 : 83. 1814. 

 Agropyron divergens Nees in Steud. Syn. Plant. Glum. 1 : 347. 1854. 



