72 JUNCACEAE. 



5. L. trisulca L. Fronds floating and submerged, oblong to 

 oblong-lanceolate, with a long stipe attached to the basal margin; 

 often somewhat falcate, 5-10 mm. long, 2-3 mm. wide; terminal 

 margins serrulate and fluted, acute at apex. 



Bear Valley, San Bernardino Mountains. 



3. WOLFFIELLA Hegelmaier. 



Stipe attached on the margin of the single reproduc- 

 tive pouch. Pouch triangular, opening as a cleft in the 

 basal margin of the frond. Fronds rootless, thin, un- 

 symmetrical, curved in the form of the segment of a 

 band, abundantly punctate on both surfaces with brown 

 epidermal pigment cells. Flowers and fruit unknown. 



1. W. oblonga (Phil.) Hglm. Fronds solitary or in pairs, oblong 

 or commonly tapering from the obliquely rounded base to the slightly 

 narrower bluntly rounded apex; slightly falcate; basal portion alone 

 exposed to the air, 0.53-1 mm. broad, 1.7-4.6 mm. long; stipe inser- 

 tion at the lower angle of the two walls of the pouch. 



Near San Bernardino, Parish. 



2. W. lingulata Hglm. Fronds solitary or rarely in pairs, ovate 

 to oblong, tongue-shaped, slightly unsymmetrical; 1.7-3 mm. broad, 

 2.7-6.6 mm. long, only a small part of the frond about the base 

 exposed to the air; stipe insertion on the margin of the lower wall 

 of the pouch. 



San Bernardino, Parish. 



Family 12. JUNCACEAE. Rush Family. 



Perennial or sometimes annual rushes or sedge-like 

 herbs, growing in tufts or from creeping rootstocks. In- 

 florescence usually compound, paniculate or corymbose, 

 rarely reduced to a single flower, bearing its flowers 

 singly or loosely clustered or aggregated into heads or 

 spikes. Flowers small, regular, perfect. Perianth 6- 

 parted, the segments glumaceous. Stamens 3 or 6; 

 anthers introrse, 2-celled, dehiscing by a longitudinal 

 slit. Ovary superior, 3-celled or sometimes 1-celled with 

 3 parietal placentae. Ovules 3-many, anatropous; 

 styles 3, filiform. Fruit a loculicidal capsule. Seeds 

 small, cylindric to subglobose, often caudate or append- 

 aged; endosperm fleshy; embryo minute, thick. 



Represented with us by a single genus. 1. Juncus. 



