114 
CONTRIBUTIONS KROM THE 
COLEANTHUS. 
NATIONAL HERBARIUM. 
1. Coleanthus subtilis (Tratt.) Seidel; Roem. & Schult. Syst. 2: 276. 1817. 
Schmidtia subtilis Tratt. Fl. Austr. 1: 12. 1816. 
Type Loca.ity: “In der gegend von Wosseck,’’ Bohemia. 
Rance: Along the lower Columbia River. Also in Europe. 
SPECIMENS EXAMINED: Klickitat County, Suksdorf 280. 
ZONAL DISTRIBUTION: Humid Transition. 
CALAMAGROSTIS. 
Awn strongly geniculate; callus hairs much shorter than the Jemma. 
Awn greatly exceeding the glumes. 
Panicle loose; leaves nearly as long as the culms... ....... 1. C. howellii. 
Panicle dense; leaves shorter than the culms. 
Leaves soft, flat........-2222222 02-02-2222 ee 4. C. tweedyi. 
Leaves hard, closely involute. 
Glumes scabrous all over.... 2... 2.222022 .22--. 2. C. purpurascens 
Glumes nearly smooth................-.---.-.-- 3. C. vaseyi. 
Awn shorter than or a little exceeding the glumes. 
Glumes strongly keeled; tall seashore plant... 5. C. aleutica. 
Glumes not strongly keeled. 
Panicle dense, purple.........-...-.-...2...-.------ 6. C. rubescens. 
Panicle dense, pale green. . a . 7. C. suksdorfii. 
Awn straight; callus hairs not much shorter than the lemma. 
Panicle loose and open. 
Spikelets 4 to 6 mm. long. ..-...-.-2.-..0000...-2-2222-- 9. C. langsdorffii. 
Spikelets 2 to 4 mm. long. 
Glumes 2 to 2.6 mm. long......... 2.22.2 222.-22----- 12. (. macouniana. 
Glumeés 3 to 4 mm. long. 
Awn attached near the middle of the lemma...... 10. C. canadensis. 
Awn attached near the apex of the lemma....... - 11. C. blanda. 
Panicle narrow, rather close. 
Callus hairs copious; sheaths bearded at summit... .._..-- 13. C..seribneri. 
Callus hairs sparse. 
Leaf blades soft, not rigid... .. 22... 22222222-222-2--. 14. C. neglecta. 
Leaf blades rigid. 
Panicle rather loose. ......-...........2.-.-.-.- 15. @. inexpansa. 
Panicle dense, spike-like. 
Glumes subcoriaceous, ovate, acute; panicle 
4 to 6 em. long..........-.-- --.---.--- 16. C. crassiglumis. 
Glumes membranous, acuminate, panicle 5 
to 20 cm. long... _._. - 17. C. hyperborea. 
1. Calamagrostis howelli Vasey, Bot. Gaz. 6: 271. 1881. 
Type Locauity: “Oregon.’’ Collected by Howell. 
Rance: Washington and Oregon. 
SPECIMENS EXAMINED: Larm River, Suksdorf 13; Cape Horn, Piper. 
ZONAL DISTRIBUTION: Humid Transition. 
Abundant on the perpendicular cliffs of the Columbia Gap, but not known elsewhere. 
2. Calamagrostis purpurascens R. Br. in Richards. Bot. App. Frankl. Journ. 731. 1823. 
Calamagrostis sylvatice DC. err. det. A. Gray, Proc. Am. Acad. 6: 80. 1866. 
Calamagrostis sylvatica americana Vasey, Contr. Nat. Herb. 3: 83. 1892. 
Type LocaLity: British America between Point Lake and the Arctic Sea. 
Rance: Alaska to Greenland, southward to the Black Hills, Colorado, and California 
