DIVISION EIGHT — SCIENCE. 633 



CLAYTONIA Linn. 



C. PERFOLiATA Donn. (Indian lettuce.) Com. in shaded soil below 4,000 feet. 

 Februar\' — May. 



CALANDRINIA HBK. 



C. MENZiESii Hook. Com. below 2,000 feet. January — April. 

 PORTULACA Tourn. 



P. OLERACE.A. Linn. (Purslane.) Com. in cultivated and waste ground. June- 

 September. 



Ca r \ 'ophyllacece . 

 SILENELinn. Catchfly. 



S. ANTiRRHiNA Liuu. Frequent below 2,000 feet. April — ^June. 



S. G.\LiCA Linn. Common below 2,000 feet. 



S. 1.ACINIATA Cav. (Indian pink.) Abundant on dry hills below 3,000 feet. May 

 —July. 



S. PALMERi Wats. S, G. Mts. above 4,500 feet. June— July. 



S. PLATYOTA Wats. S. G. Mts. above 3,500 feet. June— July. 

 STELLARIA Linn. 



S. MEDIA Linn. (Chickweed.) Com. in shaded soil below 1,500 feet. 



S. NiTENS Nutt. O. K., A. S., Canyons of S. G. Mts. April— June. 

 CERASTIUM Linn. Mou.se-ear. 



C. vuivGATUM Linn. Com. in lawns and waste soil. 

 ARENARIA Linn. 



A. DOUGtASii (Fen.) T. & G. Frequent in dry soil below 2,000 feet. April— May. 

 SAGINA Linn. 



S. OCCIDENTALIS Wats. Moist and shaded soil about Pasadena. April. 

 SPERGULA Linn. Corn-spurrey. 



S. ARVENSis Linn. Frequent along streets and in yards. March — May. 

 POLYCARPON Linn. 



P. DEPRESSUM Nutt. Altadena. April — ^June. 



Ceratophyllacece . 



CERATOPHYLLUM Linn. Hornwort. 



C. DEMERSUM Linn. In ponds at Oak Knoll. June — August. 



RanunculacetE . 

 AOUILEGIA Linn. Columbine. 



A. TRUNCATA F. & M. Oak Knoll. May — August. 

 DELPHINIUM Tourn. Larkspur. 



D. CARDiNALE Hook. (Scarlet larkspur.) Dry hillsides below 3,000 feet. June — 

 August. 



D. DECORUM F. & M. Hillsides. May— July. 



D. PARRYi Gr. Foothills S. G Mts. April—June. 



D. VARiEGATUM T. & G. Hillsides. May— July. 

 P^ONIA Linn. Pteony. 



P. CALIFORNICA Nutt. (California Paeony.) Com. in unbroken soil below 2,000 

 feet. March — May. 

 CLEMATIS Linn. Virgin's Bower. 



C. iviGUSTiciFOLiA Nutt. O. K., A. S., S. G. Mts. below 4,000 feet. 

 RANUNCULUS Linn. Buttercup. 



R. CALIFORNICUS Benth. O. K., h.. S. February — May. 



R. HEBECARPUS H. & A. Oak Knoll. March — May. 

 THALICTRUM Tourn. Meadow Rue. 



T. POLYCARPUM Wats. O. K., A. S.. Canyons of S. G. Mts. May— July. 



LaurinecB. 



UMBELLULARIA Nutt. Mountain Laurel. Spice-tree. Bay-tree. 



U. CALIFORNICA (H. & A.) Nutt. Canyons of S. G. Mts. February— April. 



44 



