28 



potato. TIio"8tonis ;iro ^i feet long and I to 1 iiicLes iudiwuiotwr, but almost 

 buried, only tlio iieniliar wliittj tops aitpeaiint^ above tho sand. The Cocopa 

 Indians call it " Ojutcli." Colouol Gray gavo niucb tlui same report of this 

 plant. He says the Papago Indians dry tlio stonis and grind tbeni with tho 

 nu'squit bc^ans, ioniiingwbat tboy call " pinole." 



937. Aphyllon Cooperi Gray. Parawitic ou Fraiiseria dumota. Tho Cocopa In- 



dians also use this plant for food. It is very bitter, but this is mostly re- 

 moved by boiling. They call it " nep-cha-ga." It grows in tho sand. 



938. This is tho same. Parasitic on Ephedra. 



953. Amaraiithus Palraeri Wat. Var. A peculiar caispitoso form, forming great 

 mats, some stems with slender ascending or erect stems 4 to 10 inches long. 

 At Lerdo, Sonora, Mexico, April.24 to 20, 1889. Grows in rivor-bottom. in 

 rather dry places. 



958. Probably tho sterile of the same. Stems uiucli branched at base and slender, 



Sagittaria variabilis Engl. The bulbs of this plant are much used l)y tho Cocopa 

 Indians eitlier raw or roasted. Lerdo, Sonora. 



Ruppia maritima, Linn. Lerdo, Sonora. Ilemsley says that this species had not 

 been collected in Mexico, although it might be expected. 



931. Scirpua maritimus, \ Awn. fide F. V. Coville. 



924-931. Uniola Palmeri Vasey. This grass was collected 35 miles south of Lerdo 

 and about 15 miles from the mouth of the Colorado River. It grows abun- 

 dantly on the tidal lands and forms almost the principal food-plant of the 

 Cocopa Indians. A full account of this plant, with plate, appears in the 

 Garden and Forest for August, 1889. 



948. Panicum colonum Linn. An aDnual grass of which the seeds are used for 

 food by the Indians. 



947. Panicum capillare Linn. var. miliaceum, V. A peculiar variety with a 

 drooping panicle, of the habit of F. miliaceum but with smaller spikelets. 

 This is also used as food by the Indians, who sow the seeds in the rainy 

 season. 



946. Lolium temulentum Linn. Introduced. 



945. Diplachiie imbricata Scrib. This extends into Arizona and southern Cali- 

 fornia. 



