498 PROCEEDINGS OF THE AMERICAN ACADEMY. 



corymbs, rusty tomentose and finely linear-maculate throughout ; bracts 

 lanceolate, 5 mm. long ; pedicels thickish, somewhat clavate, becoming 

 1 to 1.5 cm. long: calyx in an thesis 3 or 4 mm. long, deeply cleft into 

 5 linear lobes : corolla-lobes lanceolate, 6 mm. long, strongly recurved, 

 tomentulose within : filaments broad at base, 2 mm. long ; anthers oblong- 

 lanceolate, 3 mm. long. — Chiapas, in mountain-woods between San 

 Martin and Ococingo, March 13, 1896 {G. &, E. Seler, no. 2226). Ec- 

 lated to P. sessilifolia, Donnell Smith, but differing in its crenate dull 

 leaves, closer shorter pubescence and larger flowers. 



Evolvulus Seleriana. Perennial: stems prostrate or slightly 

 ascending, 1 to 2 dm. long, slightly branched, silky pilose, the older 

 becoming glabrate : leaves obcordate, obovate or obovate-oblong, short- 

 petioled, 5 to 12 mm. long, above appressed long-sericeous or glabrate, 

 beneath permanently sericeous : flowers axillarj', the filiform arcuate 

 sericeous peduncles bractless, 9 to 13 mm. long: calyx very pubescent, 

 4 mm. long, with lanceolate lobes : corolla pale (apparently white) some- 

 what silky without, 8 to 9 mm. high. — Chiapas, Tuxtla, Feb. 19, 1896 

 (C & E. Seler, no. 1926). Nearest related to E. nummularius, L., but 

 with different pubescence, obcordate leaves, longer peduncles, and larger 

 flowers. 



Ipomoea caudata. Slender glabrous vine : leaves on slender 

 petioles 3 to 5 cm. long; blade 1 dm. or less long, narrowly ovate, 

 prolonged into a caudate-acuminate tip, the base rounded-sagittate, the 

 basal lobes varying from blunt to acuminate, dark green above, glaucous 

 beneath, palmately 7-nerved at base: jDcduucles slender, 1 to 1.5 dm. 

 long, simple or once forked at the tip ; pedicels 2 to 4 cm. long : calyx 

 narrowly oblong, 1 cm. long, the unequal oblong blunt lobes mottled : 

 corolla rose-purple, 0.5 dm. long, the cylindric tube 4 cm. long, the short 

 spreading limb 2 cm. broad: style filiform, glabrous. — Morelos, on 

 mossy faces of the knobs of the Sierra de Tepoxtlan, alt. 2,310 m,, 

 Sept. 5, 1900 (C. G. Pringle, no. 8448). Habitally resembling I. simu- 

 lans, Hanbury, but with longer peduncles and calyx, and more slender 

 corolla. 



Cordia (Sebestenoides) Seleriana. Branches straggling, cov- 

 ered with brown verrucose bark : leaves ovate or suborbicular, 1 to 2 cm. 

 long, pulverulent and hispidulous ; petioles slender, hispid, 3 or 4 mm. 

 long : corymbs few-flowered, the parts very hispid ; peduncles 2.5 cm. or 

 less in length : calyx oblong-carapanulate, 1 cm. long, with short rounded 

 lobes : corolla 3 cm. long, somewhat hispidulous below, the thin ovate- 

 oblong round-tipped creuulate lobes 1 to 1.5 cm. long. — Oaxaca, dry 



