632 HISTORY OF PASADENA, 



Urticacecz. 

 PARIETARIA Tourn. 



P. DEBiLiS Forst. Canyons of S. G. Mts. April and May. 



URTICA Linn. Nettle. 



U. HOLOSERICEA Nutt. Com. in shaded soil. March— May. 

 U. URENSLinn. Com. in waste soil. April— June. 



Platajiaceix. 

 PLATANUS Tourn. Sycamore. 



P. R.\CEMOSA Nutt. O. K., .\. S., canyons of S. G. Mts. April. 



Polygonacea. 

 RUMEX Linn. Dock. Sorrel 



R. ACETOSELLA Linn. (Sheep sorrel.) Along streets. 



R. CONGLOMERATUS Murr. (Green dock.) O. K., A. S. April— June. 



R. CRiSPUS Linn. (Curled dock.) Common in moist soil. February — June. 



R. HYMENOSEPALUS Torr. (Canaigre.) A. S., N. Pasadena. March and April. 



R. SAUCIFOLIUS Wein. (White dock.) O. K., A. S. May and June. 



POLYGONUM Linn. Knotweed. 



P. ACRE HBK. (Water smartweed.) O. K., A. S. April— July. 



P. AVicuLARE Linn. (Knot-grass.) Com. in vards and along streets. May — 



July. 

 P. CONVOLVULUS Linn. Fields. May — ^July. 

 P. NODOSUM Pers. O. K.. A. S., M. C, R. C. April— July. 

 ERIOGONUM Michx. 



E. ELONGATUM Benth. A. S., foothills of S. G. Mts. T"»e— October. 



E. FASCICULATUM Benth. (Wild buckwheat.) Com. in dry unbroken soil. May — 



September. 

 E GRACILE Benth. Arroyo Seco. April — ^June. 



E. SAXATILE Wats. Com. above 4,000 feet in S. G. Mts. June — .\ugust. 

 E. viRGATUM Benth. Common below 3,000 feet. June — September. 

 CHORIZANTHE R. Brown. 



C. PROCUMBENS Nutt- Lincoln Park. May — ^July. 

 C. STATICOIDES Benth. Common below 3,000 feet. May — August. 

 PTEROSTEGIA Fisch. & Mey. 



P. DRYM.ARioiDES F. & M. Com. in unbroken soil below 4,000 feet. March — 

 Juue 



ChenopodiacecB . 



CHENOPODIUM Tour. Lamb's quarter. Goosefoot. 



C. ALBUM Linn. (Pigweed.) Common in cultivated soil. March — September. 



C. AMBROSioiDES Linn. (Mexican Tea.) Com. in waste soil. March — October. 



C. MURALE Linn. Com. below 1,800 feet, especially in cultivated soil. Februarj^ — 

 June. 

 ATRIPLEX Tourn. 



A, MiCROCARPA Dietr. Along streets. July — October. 



A. PATULA Linn. Along streets. August — October. 



Aniarantacea;. 

 AMARANTUS Tourn. 



A. ALBUS Linn. (Tumbleweed.) Waste ground. May — September. 

 A. RETROFLEXUS Linn. Cultivated soil. May — September. 



NydaginacecB. 

 MIRABILIS Linn. Four o'clock. 



M. CALiFORNiCA Gr. Common on dry hills below 4,000 feet. February — July. 



PortulacacecB. 

 CALYPTRIDIUM Nutt. 



C. MONANDRUM Mutt. Hills near Arroyo Seco. March— June. 



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