18 ERYTHEA. 



Indicia. Medicago denticulata, M. apiculata, M. saliva, 

 Silene Gallica, Marrubium vulgare, and a Briza which was 

 probably B. minor, and grew in great abundance. Marru- 

 bium vulgare was also seen in two places between Copper- 

 opolis and Poole's, on the road to Angel's Camp. Sisymbrium 

 officinale occurs on the roadside at Poole's, together with 

 Achillea Millefolium,; the latter, however, is evidently in- 

 digenous throughout middle California. Briza minor is 

 very plentiful and thoroughly naturalized around cultivated 

 and grazed lands. Alchemilla arvensis, Centaur ea Meli- 

 tensis and Silene Gallica occur at Poole's, near the junction of 

 the roads from Copperopolis and from Milton, to Angel's 

 Camp. The latter also grows high up in the hills behind 

 Copperopolis. 



At Angel's Camp, Conium maculatum ("Hemlock"), has 

 become established, as also between that and Nassau, which 

 is the "Elkhorn Station" of some maps. Capriola Dactylon, 

 "Bermuda Grass" is naturalized beside the river on moist 

 sand banks. Trifolium pratense is quite abundant in 

 meadows and on adjoining hillsides, as is also T. repens. 



Around Murphy's Camp I found Plantago lanceolata, 

 Silybum Marianum, Trifolium pratense, T. repens, Medicago 

 lupulina, M. saliva, Silene Gallica, Anagallis arvensis. 

 Rumex Acetosella and Ly thrum Hyssopifolium. — J. Burtt 

 Davy. 



Notes on Euppia: — On September 19 last, I had the 

 pleasure of finding Ruppia maritima Linn, in full flower. 

 It grew in shallow ditches and isolated pools of the salt- 

 marshes bordering Petaluma Creek, within a few miles of the 

 town of Petaluma, California, where the water was but two 

 or three inches deep, and there was but little current. This 

 appears to be the first time, the plant has been recorded for 

 the tidal waters of San Francisco Bay. 



Britton & Brown give the flowering period of Ruppia 

 maritima in the Eastern States, as July and August. In 

 England its flowering period is July to September, according 

 to Hooker. 



