OF ARTS AND SCIENCES. 41 



Abutilon aurantiacuji, Watson. San Pedro "Martin Island. 

 (401.) 



Abutilon scabrum. Erect, 3 feet high, scabrous throughout 

 with very fine stellate pubescence, scarcely at all canescent : leaves 

 thin, cordate to cordate-lanceolate, acuminate, rather coarsely and 

 unequally toothed, 3 inches long or less, on slender petioles : flowers 

 bright orange, an inch broad, axillary, solitary, on slender peduncles 

 exceeding the petioles and jointed near the top ; calyx as long as the 

 petals, the ovate acute lobes apparently cordate, enlarged in fruit : 

 carpels 8, shortly acuminate, very finely pubescent. 5 lines long. — 

 Near A. Jacquini and A. Berlandieri, which are softly pubescent and 

 not at all scabrous. Among bushes in ravines and by garden fences 

 near Guaymas. (97, 662.) 



Spfleralcea ambigua, Gray. In mountain canons near Los An- 

 geles Bay (537), and a small-flowered form from S. Pedro Martin 

 Island (405). Also what is probably a form of this species from 

 garden fences at Guaymas. (90.) 



SpiJuERALCEa axillaris. Stellate-pubescent ; stems long and 

 slender : leaves ovate to lanceolate, acutish, subcuneate at base, finely 

 crenate, 2^ inches long or less, the petioles half as long: flowers 

 yellowish, an inch broad, in short axillary solitary or clustered ra- 

 cemes or panicles ; calyx 3 lines long, the lobes acuminate: carpels 

 about 15, 1-seeded, 1^ lines long, obtuse, the base very strongly 

 reticulated, the broader empty cell thin and scarious. — Muleje; com- 

 mon in shady places. (17.) 



Spil/ERALCEa (?), sp. Imperfect specimens from S. Pedro Martin 

 Island. (404.) 



Kosteletzkya Coulteri, Gray? A rather stout branching plant. 

 3 feet high, with deeply 5-7-lobed leaves, and " white " flowers drying 

 to greenish yellow. Coulter's original specimens are much reduced, 

 with only the upper leaves deeply lobed, the flowers apparently yel- 

 low, and the authors few. The present plant is probably the fully 

 developed form. In waste places about Guaymas. (236 ) 



Hibiscus denudatus, Benth. Los Angeles Bay. (523.) 



Hibiscus Coulteri, Gray. River-bed, Guaymas. (668, 66 



Gosstpium iiERiiACEU.u, Linn. In garden fences at Guaymas ; 

 the plants 8 feet high and said to be forty years old. (11" I 



Gossypium Davidsoni, Kell. A loose sbruh :; to ."» feet high, the 

 larger leaves 3-lobed ; bractlets ample, deeply laciniate, persisteni 

 about the ovate capsule, which is half an inch long and 3- or rarely 1- 

 celled; seeds 6 or 8 in each cell, in two rows, not at all lanat ■ the 



