SHORT ARTICLES. 99 



the coils were fairly close and tight. These attachments 

 were made by the various branches to branches of the same 

 plant, to other plants of the same species, to neighboring 

 slender algae, and to the leaves of Phyllospadix. 



By such means tangled masses of L. virgaia were formed 

 and when these were split up by the action of the waves, the 

 detached portions continued fast and to thrive. One can 

 readily see, also, how portions of such a mass, upon being 

 torn away and floated off, may readily attach themselves anew 

 and form the nucleus for a new growth. These tendril- 

 like organs then, not only allow the plant to spread over other 

 plants, but also to increase the number of individuals by 

 purely vegetative processes. 



Such organs exist also in Cysiocloniiim purpurascens var. 

 cirrhosa Farlow, of the eastern coast. W. A. Setchell. 



New Stations for Two Introduced Plants: — A recent 

 collection of plants made by Mrs. Ellwood Cooper of Santa 

 Barbara discovers two new weeds in that locality, viz : Erigeron 

 linifolius Willd. and Artemisia biennis Willd. The former 

 has not before been reported from California, though found 

 by the writer at Bakersfield in September, 1893. The latter 

 is recorded in the "Botany of the Bay Kegion" as growing 

 "mostly in or near cultivated fields, at West Berkeley, etc." 



Alice Eastwood. 



Arbutus Menziesii in San Francisco County : — At pres- 

 ent there is no record of the existence of Arbutus Menziesii 

 Pursh. in a native state in the County of San Francisco. Dr. 

 Behr remembers one tree that grew in a thicket of Qnercus 

 agrifolia, Heteromeles arbidifolia, etc. covering a sandy 

 ridge bordering a marsh in the neighborhood of where 

 Seventh and Harrison streets now come together. 



Near Lake Merced there is a solitary tree dwarfed and 

 weather-beaten, probably the only one now growing wild in 

 the county. It is a sorry specimen hardly to be distinguished 

 from the surroundiug brush. Last year it bloomed, but this 

 year there is not a sign of a flower bud. It was first noticed 

 by Miss Cannon in 1894. Alice Eastwood. 



