JUNCACEAE. 75 



7. J. acutus sphaerocarpus Engelm. Stems and leaves 0.5-1.5 

 m. high, stout, rigid and pungent, growing in large tussocks; panicle 

 6-12 cm, long, about equaling the spathe, secondary spathes long- 

 acuminate; clusters 2-4-flowered; perianth segments scariously 

 margined, outer broadly lanceolate, acute, inner obovate, deeply 

 emarginate, 2 mm. long; capsule subglobose, apiculate, about 4 mm. 

 long. (/. rohustus Wats.) 



Salt marshes near the coast. Playa del Rey; Wilmington. 



8. J. phaeocephalus paniculatus Engelm. Stems from a creeping 

 rootstock, ancipital, 3-7 dm. high; leafy; leaves flat, 2-6 mm. wide, 

 often exceeding the stems; flowers in several few-flowered heads 

 arranged in a compound panicle; perianth segments brownish, 3-4 

 mm. long, lanceolate acuminate; stamens 6; anthers usually exceeding 

 the filaments; style long exserted; capsule acute; seeds ovate, closely 

 reticulated. 



Frequent along streams and in low brackish places. May-July. 



9. J. xiphioides Meyer. Perennial from stout elongated root- 

 stocks; stems 5-10 dm. high, leafy, more or less winged ; leaves ensi- 

 form, the edges turned toward the stem, 4-8 mm. wide, transversely 

 septate; flowers in dense heads, arranged in cymose panicles; perianth 

 usually dark, 5 mm. long; style very short. 



Marsh lands near Los Angeles, Davidson; peat lands. Orange 

 County, Helen Geis; San Bernardino, Parish. 



10. J. torreyi Coville. Stems 2-10 dm. high; rootstocks slender, 

 with tuberiform thickenings a few centimeters apart, each supporting 

 a single stem; stem stout, 1-4-leaved; blade stout, terete, 10-25 mm. 

 thick, spreading; heads 1-20, exceeded by the lowest bract, each 

 10-16 mm. in diameter; perianth 5-7 mm. long, the segments subu- 

 late; stamens 6; capsule subulate, 3-sided, exceeding the perianth. 

 (/. nodosus megacephalus Torr.) 



Occasional along streams. Los Angeles River, Davidson; peat 

 lands, Orange County, Helen Geis. 



11. J. rugulosus Engelm. Stems 4-10 dm. high from a stout 

 running rootstock, rather weak, pale green and transversely rugose 

 and roughened; leaves 3 mm. wide, transversely rugose and septate; 

 panicle decompound, lax, 5-15 cm. long and as wide; perianth 

 segments linear-lanceolate, very acute, 2 mm. long; capsule lance- 

 olate acute, 3-angled, exceeding the perianth. 



Frequent along mountain streams from the San Gabriel Moun- 

 tains southward to the Cuyamaca Mountains. 



12. J. macrophyllus Coville. Stems several, simple, leafy, 3-5 

 dm. high; leaves much shorter than the stems, flat and grass-like, 

 the sheaths with distinct ligules; heads usually 5-9 in a sparingly 

 branched panicle, exceeding the very short spathe, few-flowered; 

 perianth segments greenish, narrowly ovate acuminate; stamens 6; 

 seeds oblanceolate, minute, faintly ribbed. 



Frequent on dry ridges in the pine belt of the San Gabriel and 

 San Bernardino Mountains. 



