146 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



CAPRIOLA. 



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, Lecl'enhy, August, 1897. 



SCRIBNERIA. 



1. Scribneria bolanderi (Thurb.) Hackel, Bot. Gaz. 11: 105. 1880. 



Lepturus holanderi 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, Sul'sdoif 913. 



Zonal distribution : Arid Transition. 



LOLIUM. 



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



Glumes shorter than the spikelet 2. L. perenne. 



1. Lolium temnlentum L. Sp. PI. 1: 83. 1753. 



Type locality: "llal)itat in Europae agris inter Hordeum, Linum." 

 Specimens examined: Seattle, Smith 794. 



2. Lolivun perenne L. Sp. PL 1: 83. 1753. Perennial ryegrass. 

 Type locality: "Habitat in Europa ad agrorum \orsuras solo fertili." 



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



AGROPYRON. Wheat grass. 



Plants densely tufted, seldom producing stolons. 

 Glumes awnless. 



Spikelets flattened, somewhat remote 1. ^4. spicatum. 



Spikelets subterete, close. 



Lemmas long-awned 2. ^4. richardsonii. 



Lemmas awnless, or very short-awned. 



Spikes slender, 5 to 20 cm. long; lower glume 5-nerved 3. A. teneruin. 

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

 Glumes awned. 



Awns short; glumes lanceolate 5. ^4. gmelini. 



Awns long; glumes subulate. 



Spike dense; herbage pubescent 6. ^4. saxicola. 



Spike loose; herbage glabrous 7. ^4. flexnosum. 



Plants not tufted, producing abundant stolons. 

 Lemma hairy. 



Spike rather dense; lemmas villous 8. ^4. suhvillosuni. 



Spike loose, elongate; lemmas puberulent 9. ^4. lanceolatum. 



Lemma not hairy, usually glabrous. 



Leaves scabrous on both sides 10. ^4. occidentale. 



Leaves smooth beneath, pubescent above 1 1. ^4. repens. 



1. Agropyron spicatum (Pursli) Scril)n. & Smith, U. S. Dept. Agr. Div. Agrost. Bull. 

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



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

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



