VOL. i. | Naturalized Plants. 29 
radish and the tomato, and among flowers the sweet alyssum. In 
this region they are mere temporary fugitives which fail to propa- 
gate and extend themselves, and have no claim to be enumerated 
among our plants. Az/antus glandulosus, the garden asparagus, 
and the common pampas grass show some inclination about San 
Bernardino to pass into’ the rank of truly naturalized plants, and 
other similar instances have been mentioned elsewhere in these 
notes. Mr. Cleveland reports Cerastium viscosum in a yard at San 
Diego, and Me/ilotus alba ina cultivated field at Buckman’s Spring, 
near Pine Valley, San Diego County, both apparently not fully es- 
tablished. Probably here also belongs Carex pseudocyperus var. 
Americanus, a single plant of which I collected ten years ago by the 
roadside in San Bernardino. It has never reappeared, and is not 
otherwise known south of San Francisco. 
SumMARY. Excluding those plants whose foreign derivation is 
disputed, and those which have not sufficiently established them- 
selves, the naturalized flora of the four southern counties comprises 
the following species: 
Brassica nigra. 
alba. 
campestris. 
adpressa. 
Nasturtium officinale. 
Capsella Bursa-pasioris. 
Raphanus Raphanistrum. 
Cerastium viscosum. 
Stellaria media. 
Portulaca oleracea. 
Malva parviflora.* 
Evrodium moschatum. 
cicutarium. 
Melilotus Indica. 
alba. 
Convolvulus arvensis. 
Solanum rostratum. 
Physalis eguata. 
Nicotiana glauca. 
Verbascum virgatum. 
Verbena officinalis. 
Mentha piperita. 
viridis. 
Nepeta cataria. 
Marrubiun vulgare. 
Plantago major. 
lanceolata. 
Rumex crispus. 
conglomeratus. 
Polygonum aviculare.t 
*To this species, rather than to J. dorealis, belongs the common Mallow of 
Southern California. 
t Polygonum nodosum was included on a previous page, but while usually a weed 
of cultivation it may possibly be also indigenous, and is therefore omitted. 
