44 GRAMINEAE. 



1. S. setigera Prcsl. Bear-grass. Perennial; stems erect, 1 to 3 ft. high; 

 panicle 5 to 12 in. long, open, nodding in flower; branches in pairs, slender, 

 [tearing a few drooping spikelets; bracts 6 to 10 lines Long, long-acuminate; 

 bractlet 3 lines long, silky-hairy sometimes all aipund below, but only on the 

 nerves above, minutely tuberculate; awn stoutish, 2 1 /. to 4 in. long, hairy below. 



Common on dry hillsides from Mendocino Co. southward: Berkeley Hills; 

 San Francisco. Mar.-June. 



2. S. eminens Cav. v&t. andersoni Vasey. Anderson's Stipa. Peren- 

 nial; stems erect, 1 to 3 ft. high, slender; panicle 2 to 5 in. long, open, 

 nodding in flower; branches in pairs, very short, slender, spreading, bearing few 

 drooping spikelets; bracts 3 to 4 lines long, acuminate; bractlet about 3 lines 

 long, silky-hairy all over; awn slender, about 1 in. long, scab rid but not hairy; 

 anthers tipped with a tuft of short hairs. 



Dry Coast Eange foothills : Oakland Hills ; Berkeley ; St. Helena. Apr.- 

 June. Frequently occurring in company with S. setigera and sometimes con- 

 fused with it, but at once distinguishable by the shorter bracts and awn. The 

 home of the typical S. eminens Cav. is Ecuador, and it is said to occur also 

 in southern California and Arizona. 



3. S. viridula Trin. Feather Bunch-grass. A perennial with dense, 

 narrow panicle and short, erect branches, and with naked anthers, is found in 

 the northern Coast Eanges and the middle Sierra Nevada; reported from the 

 vicinity of San Francisco by Dr. Behr. 



9. PHLEUM L. Timothy. 

 Ours perennial. Leaf-blades flat. Inflorescence a dense, cylindrical or ovoid 

 thyrse or false spike, often pubescent, borne on a long peduncle. Spikelets 

 crowded, 3 lines or less long, much compressed laterally, 1 -flowered. Rachilla 

 very short, jointed above the bracts and sometimes extending beyond the inser- 

 tion of the bractlet as a short spine. Bracts distinct, complicate, boat-shaped, 

 almost equal, membranous, 1 to 3-nerved, abruptly acute, persistent, compressed- 

 keeled, the keel projecting into an abrupt mucro or very short awn. Bractlet 

 shorter than the bracts, awnless, very thin, truncate or denticulate. Palea nar- 

 row, hyaline, 2-nerved, sometimes bearing a minute bristle on the back from 

 near the base. Scales 2, hyaline, toothed above. Stamens 3. Ovary smooth; 

 styles long; stigmas slender. (Phleos, the ancient Greek name for some marsh 

 or water-plant.) 



Panicle l l /> to 9}A in. long, rough to the touch, not feathery; spikelets about \]/ 2 lines 

 long including the awn 1. P. pratcusc. 



Panicle l / 2 to 1 V 2 (rarely 2) in. long, soft to the touch; spikelets 2 to 2^2 lines long 

 including the awn 2. P. alpinum. 



1. P. pratense L. Timothy. Rootstock tufted, stolonif erous ; stems sub- 

 BOlitary or tufted, erect, leafy, 1 to 4 ft. high, simple, bright green; lower 

 inlernodes often swollen and corm-like; sheaths glaucescent, striate, glabrous; 

 ligule brownish, iy 2 to 2 lines long, abruptly acute; blades 2% to 3 lines wide, 

 minutely scabrid, especially on the edges, glaucescent; panicle l 1 /-? to 9 in. long, 

 about 3 lines wide, rough to the touch, not feathery; spikelets about 1% lines 

 long including the awns, rigid, pale green or purplish; bracts about 1 line 

 long, hyaline except the nerves; nerves 3, converging above into a divergent, 

 BCabrous mucro about % line long, the central nerve pectinate-ciliate; margins 

 of the bracl abruptly truncate below the mucro; bractlet about 1 line long, 

 broad, completely enfolding the narrow palea, faintly 5 to 7-nerved and 

 toothed; palea Pamtly 2-nerved, emarginate; anthers about 1 line long and 

 yellow before shedding the pollen, afterwards shrunken and lavender-colored. 



