OP ARTS AND SCIENCES. 51 



equalling the tube; petals 15 lines long; anthers much curved: 

 fertile flowers on slender peduncles 1 to 1^ inches long: ovary oblong, 

 thinly pubescent ; fruit 1^ inches long, broadly ellipsoidal, abruptly 

 attenuate at base, very shortly beaked, smooth, with green markin<rs ; 

 rind thin; placentas 4 (or sometimes 5?), distinct, pulpy, many- 

 seeded : seeds brown with whitish margin, 3 lines long. — Apparently 

 dioecious ; differing from the genus in the number and distinctness of 

 the placentas. Fruit edible, with the taste nearly of muskmelon, 

 ripening in September. Plains about Guaymas. (282.) 



Maximowiczia Sonor^. Climbing, glabrous throughout, the 

 large root projecting above ground : leaves 4 inches broad or less, 

 twice 3-cleft nearly to the base, with broad sinuses, the lobes coarsely 

 siuuate-tootlied : male flowers racemose, short-pedicellate, the calvx- 

 tube cylindrical, 3 lines long; petals pubescent, villous within, bitid : 

 fertile flowers ou peduncles 2 or 3 lines long : ovary ovate, long-atten- 

 uate above; fruit ovate, abruptly stout-beaked, "amber-colored,^' 1;^ 

 to 1-|^ inches long, smooth with a thick fleshy rind; placentas many- 

 (about 14-) seeded: seeds "covered with a red pulp," compressed, 

 rough-coated excepting the smooth margin, obovate or oblong-obovate 

 with a broad base, 3 lines long or more. — This species much resem- 

 bles M. Lindheimeri, but the leaves are more dissected and the ovary 

 and fruit more attenuate above, and the seeds though decidedly tur- 

 gid in the young fruit become compressed and are peculiar in their 

 generally very rugose-tuberculate surface. The green fruit is de- 

 scribed as having about 10 longitudinal rows of white dots. A decoc- 

 tion of the root is used as a cathartic. About Guaymas, and known 

 as " guarequi." (283.) 



EcHiNOPEPON ixscLARis. Annual, finely and rather softly pubes- 

 cent, or glabrate : petioles not pilose; leaves broadly cordate, H to 3 

 inches broad, 5-lobed nearly to the middle, the short triangular lobes 

 acute, finely and acutely toothed, the sinuses acute : male flowers in 

 narrow panicles mostly exceeding the leaves ; corolla 5-cleft, 1| to 2 

 lines broad ; anthers sigmoid, horizontal ; pistillate flowers solitary in 

 the same axils, on slender peduncles 3 or 4 lines long : ovary obliquely 

 oblong-ovate, subpubescent, echinate, attenuate and naked above; 

 fruit subglobose after the falling of the beak, about 4 lines in di- 

 ameter, covered with stiff straight spines i line long, firm and spongy 

 within, 1-celled, 1 -seeded: seed ascending, smooth, ohlong-obovate, 

 subcompressed with a broad flat base, 2 lines long, dark. — The ovary 

 appears to have an upper cell with an abortive ovule. Common on 

 S. Pedro IMartin Island. (409.) 



