APPENDIX 1367 



1. SESAMUM L. 



Herbs. Leaves opposite or partially alternate: blades broad or narrow, entire 

 or toothed. Flowers axillary. Calyx-lobes slightly unequal. Corolla horizontal: tube 

 very short: throat campanulate : limb 2-lipped the lower lip much larger than the 

 upper one. Stamens included. Capsule of an oblong type, angled or somewhat flat- 

 ened. Seeds wingless. 



1. Sesamum Indicum L. Plants 1.5 m. tall or less, finely pubescent: leaf- 

 blades ovate, toothed or lobed and long-petioled on the lower part of the stem, lanceo- 

 late to linear-lanceolate, undulate on entire and short-petioled above: flowers short- 

 pedicelled: calyx-lobes lanceolate or linear-lanceolate, 5-7 mm. long: corolla pink, 

 yellowish or white, 2-2.5 cm. long; lobes rounded: capsules oblong, 2.5-3 cm. long, 

 abruptly pointed. 



In cultivated grounds and waste places, Gulf States. Naturalized from the tropics. 

 All year. Bexne. 



Page 1105, Morinda should be contrasted with CephalantJius, from which it 

 differs in the minute or obsolete sepals and the fleshy fruits which are coalescent into 

 a synearp. 



Page 1105, Ernodea should be contrasted with Morinda from which it differs in 

 the long sepals, the axillary flowers and the solitary fruits. 



Page 1108, after Houstonia purpurea, insert: 



10a. Houstonia mont^na (Chickering) Small. Similar to Houstonia purpurea 

 in habit, typically smaller: leaf -blades ovate, 0.5-1.5 cm. long, acute, sessile: hypan- 

 thium becoming larger than that of H. purpurea: sepals lanceolate or oblong-lanceo- 

 late: corolla purple, sometimes deeply so, 9-11 mm. long: capsules fully 2 mm. thick. 

 — Differs from E. purpurea in the broad sepals and the larger corollas. 



On and about cliffs, summit of Roan Mountain and adjacent peaks, North Carolina and 

 Tennessee. Summer. 



Page 1109, after Houstonia salina, add: 



19. Houstonia acerosa A. Gray. Perennial, shrubby. Stem and branches 

 tufted, 1-2 dm. tall, rigid: leaf -blades acicular-setaceous, 5-11 mm. long, clustered: 

 sepals subulate-setaceous, 5-6 mm. long: corolla purplish; tube longer than the sepals, 

 slightly dilated near the top; lobes lanceolate or oblong-lanceolate: capsules about 2 

 mm. long. — Differs from the other species of Houstonia in the shrubby habit, and 

 the acicular-setaceous clustered leaves. 



In dry soil, southern Texas, New Mexico and adjacent Mexico. Summer. 



Page 1113, after Psychotria undata, insert: 



3. Psycliotrla Baham6nsis Millsp. A shrub 3 m. tall or less, or a small tree, 

 with glabrous twigs. Leaf-blades lanceolate, elliptic or oblanceolate, 3-12 cm. long, 

 acuminate, paler beneath than above, short-petioled: cymes lax, peduncled: sepals 

 deltoid: corolla white, 3-4 mm. long; lobes oblong to oblong-lanceolate, shorter than 

 the tube: fruits oval or globular, 4-5 mm. long, bright orange. — Differs from P. 

 undata in the deltoid sepals and the peduncled cyme. 



In hammocks, Key Largo, Florida. Also in the West Indies. 



Page 1113, after Psychotria, insert: 



15a. PAEDERIA L. 



Woody vines. Leaves opposite: blades broad, at least relatively so, entire. 

 Flowers borne in dichotomous cymes. Sepals 4 or 5, narrow. Corolla campanulate 

 or funnelform: lobes 4 or 5, relatively short. Filaments almost wholly adnate to the 

 corolla-tube: anthers narrow. Styles slender, united at the base. Berry rather dry, 

 the outer coat brittle and early falling away. Seeds flat, margined. — Differs from 

 Psychotria in being vines and in the large throat of the corolla and the winged seeds. 



1. Paederia fo^tida L. Stems twining, often slightly pubescent in lines: leaf- 

 blades oblong to oblong-lanceolate, 3-11 cm. long, acuminate at the apex, rounded, 

 truncate or subcordate at the base, slender-petioled : sepals acute: corolla 7-9 mm. 



