OP ARTS AND SCIENCES. 73 



Phaulothamnus spinescens, Gray. A thorny shrub, 10 feet 

 high ; fruit a drupe with white fleshy pericarp, the embryo surround- 

 ing copious mealy albumen. About Guaymas. (68.) 



Stegnosper.ma halimifolium, Benth. An upright evergreen, 5 

 or 6 feet high, with fleshy leaves, white flowers, and red pulpy fruit. 

 At Muleje, on the island of San Pedro Martin, and at Guaymas. 

 (31, 400.) 



Eriogonum inflatcm, Torr. " Tivinagua " ; much used as a 

 remedy for fevers. Muleje and Los Angeles Bay. (24, 574.) 



Eriogonum fasciculatum, Benth. Los Angeles Bay, abundant; 

 1 or 2 feet high. (549.) 



Eriogonum insigne, Watson, var., with the small leaves round- 

 ovate instead of reniform, and the sepals broader. On mountains 

 near Los Angeles Bay. (585.) 



Polygonum Persicaria, Linn. High mountains above Guay- 

 mas. (211.) 



Antigonon leptopus, Hook. & Arn. " San Miguelito " ; its 

 long black wiry roots develop large tubers at intervals, which have 

 a pleasant natty flavor and are an article of food with the Yaqui 

 Indians. About Guaymas. (59.) 



Aristolochia brevipes, Benth., var. acuminata, Watson. 

 " Yerba del Indio " ; the root used for aches and pains. About 

 Guaymas. (174.) 



Loranthus Spirosttlis, DC. ? Leaves narrower than described 

 (2 to 3| inches long by 2 to 5 lines broad), and sessile or subsessile. 

 Flowers white and very fragrant ; fruit ovoid, 3 lines long, said to 

 be red. About Guaymas, growing on fig, lime, mesquite, and other 

 trees, the stems elongated, rooting or hanging in long tangled masses. 

 (199.) 



Loranthus (Psittacanthus) Sonor^. Glaucous and glabrous, 

 the slender stems 3 or 4 inches long: leaves alternate, very narrowly 

 linear or terete, 1 or 2 inches long and less than a line broad : flowers 

 solitary or in pairs, terminating the brancblets, on pedicels 3 lines long 

 or less ; ovary a line long, subtended by a very shallow cupule and a 

 short lateral bractlet ; perianth scarlet, an inch long, the petals dis- 

 tinct : fruit unknown. — Hillsides and edges of ravines about Guaymas, 

 growing upon Biirsera microphylla. (287.) 



Phoradendron flavescens, Nutt. Guaymas, on Maytenus 

 phyllanthoides. (88.) 



Phoradendron Californicum, Nutt. About Guaymas, in large 

 bunches, chiefly upon the tliorny mimosas and acacias. (605.) 



