DIVISION EIGHT — SCIENCE. 629 



R.MAXIMUS Desf. Com. below 2,000 feet. April — ^July. 

 B. MOLLIS Linn. Along streets April — July. 



B. RIGIDUS Roth. Devil's Gate. April— July. 



LOLIUM Linn. Darnel. 



L. PERRNNE Linn. (Perennial rye grass) Com. in cultivated soil. April — July. 

 L. TEMULENTUM Linn. (Bearded Darnel.) Com. in cultivated soil and along 

 streets. April — ^July. 



HORDEM Linn. Barley. 



H. MURiNUM Linn. (Wild Barley) Com. below 1,800 feet. March — ^July. . 



ELYMUS Linn. Wild Rye. 



E. AMERiCANUS V. & S. Oak Knoll. April— June. 



E. CONDENSATus Presl. O. K.; A. S.; foothills of S. G. Mts. April— July. 



E. SiBiRicus Linn. S. G. Mts. June— August. 



E. SITANION Schult. O. K. Along streets. April— June. 



E. TRiTicoiDES Nutt. A. S.; foothills of S. G. Mts. June — September. 



Cyperacece. 

 CYFERUS Linn. 



C. DiANDRUS Torr. Var. capitatus Brit. Oak Knoll. 



C. ERYTHRORRHizos Muhl. O. K.; Baldwin's Ranch. July — October. 



C. LAKViGATUS Linn. Arroyo Seco. August — November. 

 SCIRPUS Linn. BuUrush. Club-rush. 



S. LACUSTRis Linn. var. occidentalis Wats. Oak Knoll. April — ^June. 



S. OLNEYi Gr. O. K.; A. S. 



S. RiPARius Spreng. Oak Knoll. February — June. 



S. SYLVATicus Linn. var. microcarpus (Presl.) McM. O. K.; A. S. Ma}' — 

 August. 

 HELEOCHARIS R. Br. Spike-rush. 



H. acicularis (Linn.) R. Br. Oak Knoll. 



H. ARENicoLA Torr. Oak Knoll ; A. S. April — ^June. 



H. PALUSTRis (Linn.) R. Br. 

 CAREX Linn. Sedge. 



C. BARBARAS Dewey. O K.; R. C. February — ^June. 



C. FiLiFORMis Linn. var. lanuginosa (Michx. ) B. P. S. O. K.; A. S. Feb- 

 ruary — May. 



C. MULTiCAULis Bailey. Mt. Lowe. April — June. 



C. SPISSA Bailey. O. K.; R. C. February — May. 



C. TERETIUSCULA Good. var. ramosa Boott. R. C. ; L. St. A. C. June — 

 August. 



C. TRiouETRA Bott. Hills near Arroyo Seco. March — May. 



Leninacea . 

 LEMNA Linn. Duckweed. 



L. GiBBA Linn. Johnson's Lake. 

 L. VALDiviANA Phil. O. K.; A. S. 



Juncacece. Rush Family. 



JUNCUS Linn. Bog-Rush. 



J. BALTICUS Deth. O. K ; A. S. May— July. 



J. BUFONius Linn. Com. in moist soil below 1000 feet. March — ^June. 



J. COMPRESSUS HBK. Oak Knoll. July — September. 



J. DUBius Eng. Oak Knoll. July— September. 



J. LONGISTYLIS Torr. O. K.; A. S. June — August. 



J. NODOSUS Linn. O. K. ;A. S.; M. C. June— August. 



J. PHAEOCEPHALUS Eng. O. K. ; A. S. June — August. 



J. ROBUSTus Wats. O. K., A. S., M. C. April — August. Used by the Indians for 



basket making. 

 J. XIPHIOIDES Mey. O. K., A. S. May— July. 



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