FESTL'CE.E. 



457 



Fig. SQ. — Orcuttia Cali- 

 fornica. A, ]iaiiicle ; 

 a, spikelet ; b, floiiil 

 glume ; c, palea. 

 (Scribner, ) 



glume, hyaline, nuri'ow, strongly keeled, 2-toothed. Stamens 3. 

 Styles slightly united below, long, shortly plumose. 

 Two species of low annuals, found in California. 



1. 0. Californica A^asey, 1. c. 



Plant diffuse, 3-10 cm. high, often branching, growing in small 

 clusters of 10-20 or more culms from the 

 same root. Sheaths open and inflated; lig- 

 ule obsolete; blades 2-3, flat or involute, 

 acuminate, sparingly pubescent, 8-25 mm. 

 long. 



Lower California (near San Quintin Bay), 

 C. R. Orcutt for U. S. Dept. Agricul. 



2. 0. Greenii Vasey, Coult. Bot. (Jaz. 10: 

 146 (1891). 



Plant soft, erect, light green, 20-30 cm. 

 high, branching near the base, clothed from 

 culm to floral glume more or less with soft 

 short hairs, some of them from tubercled 

 bases. Culms containing 6-10 purple nodes separated by inter- 

 nodes 1.8-2.5 cm. long. Sheaths open, nearly as long as the in- 

 ternodes; ligulea ciliateridge; blades thin, easily splitting, involute, 

 erect, 2-4 cm. long, 1.5-2 mm. wide. Panicle with base included, 

 dense, linear or oblanceolate, 3-5 cm. long, the axis and short rays 

 triquetrous. Spikelets mostly sessile, somewhat flattened, linear, 

 7-13 mm. long, 5-10-flowered, nichilla smooth ; empty glumes sub- 

 equal, about 4 mm. long, the margins scarious, slightly keeled near 

 one margin, first linear-lanceolate or linear, 5-7-10-nerved, 1-3- 

 toothed, second oval, 7-10-nerved, irregularly 2-3-toothed; floral 

 glume oval, 3.5-5 mm. long, translucent below and 5-7-nerved, 

 obscurely keeled above with 11-17 green nerves, 3-5-toothed; jialea 

 hyaline, oval, 2-nerved, truncate, irregularly 2-4-toothed, nearly as 

 long as its glume. Stamens 3; anthers 2 mm. long. Ovary oval, 

 1 mm. long, stigmas 2.5-3 mm. long. 



California, Green. 



104. (218). Sesleria Scop. Fl. Carn. Ed. 1.63 (1772). Psi- 

 lanthera Link, Ilort. Berol. 1:121 (1827). 



