212 CALIFORNIA ACADEMY OF SCIENCES. 



Andropogon macrourus Mx. — Santa Maria. 



Phalaris arundinacea L. 



Aristida scabra. — Cliapm. 



Aristida Californica Thurb. — El Llano de Santana. 



Aristida Californica var. major Yasey. — Magdalena 

 Island. 



Aristida Schiediana Trin. — Comondu. 



Aristida bromoides HBK. — San Julio. 



Stipa eminens Cav. — San Julio Canon. 



Stipa coronata Thurb. — Ubi. 



Oryzopsis cuspidata Bentli. — Agua Dulce. 



MUHLENBERGIA CALAMAGROSTIDEA Trin. — Comondu. 



MuHLENBERGiA DEBiLis Trin. — San Jorge, Comondu. 

 ^Bealia Mexicana Scribner. — Santa Margarita Island. 

 Sporobolus Wrightii Munro. 

 Sporobolus argutus Kuntli. — Magdalena Island. 



Sporobolus altissimus, Yasey. Culm 4 to 5 ft. liigli, 

 simple; leaves long, slender, becoming involute; panicle 

 6-8 inches long, narrow, the branches erect, scattered or 

 partly verticillate, 3-4 inches long, subdivided and flower- 

 bearing from near the base: spikelets 1-flowered, about 1 

 line long; empty glumes unequal and nearly as in /S'. airoides 

 — from which it differs in its greater height, and closer 

 panicle, as well as in details of the flower. 



Collected at San Diego by Dr. Edward Palmer. 



^Tliis grass was first collected by Mr. C. G. Pringle in Chihuahua, Mex,, 

 in October, 1886. It was named by Prof. F. L. Scribner, as a new genus, in 

 honor of Prof. W. J. BomI, of the Michigi,n Agricultiiral College. I am not 

 aware that a description has been published. It is considered by Prof.. 

 Hackel as forming, with Clomena Beauv, a section of Muhlenhergia. It ap- 

 pears to have pretty strong claims to specific distinction. 



