84 APOCYNACE-E. Echites. 



the apex (half to barely an inch long) : corolla minutely puberulent outside ; its somewhat 

 funnelform throat and the obovate lobes as well as the narrow tube each about half an 

 inch in length. Echites brack y siphon, Torr. I.e. Southern New Mexico and Arizona, 

 Wright, Schott, Thurber, Palmer, Ruthrock. 



8. ECHlTES, P.Browne, L. ('EyJTi^ is the serpent-stone; application to 

 this genus obscure.) Twining woody plants ; with opposite leaves, and ter- 

 minal or lateral peduncles, bearing racemosely or sometimes simply cymosely dis- 

 posed flowers, of ample size ; the corolla white, rose-color, or more commonly 

 yellow. Nearly all tropical American, barely reaching the south-eastern shores 

 of the United States, in three species belonging to as many genera of Mueller, 

 hesitatingly adopted by Bentham ; perhaps better as two, viz., the following, here 

 arranged as subgenera. 



1. MANDEVILLEA. Corolla with cylindrical or cylindraceous tube abruptly 

 dilated above into an inflated- or oblong-campanulate wide throat.-- Mandevillea, 

 Liudl. (Amblyanthera, MuelL), with Rhdbdadenia & Urecltites, Muell. 



E. Andrews!!, Chapm. Glabrous or occasionally pubescent, low, usually twining : 

 leaves oval or oblong, often mucronate (about 2 inches long) : peduncles corymbosely 

 3-5-flowered : lobes of the calyx as long as the proper corolla-tube, linear-subulate: corolla 

 yellow (2 inches long and the limb as broad) ; the much enlarged throat oblong-campanu- 

 late, hardly thrice the length of the narrow tube, little longer than the ovate spreading 

 lobes : anthers abruptly produced at apex into a long linear-filiform appendage : seeds 

 with a long filiform beak, the lower half of which is naked, the upper plumosely comose. 

 Fl. 359 [i860). Echites suberecta, Amir. Bot. Eep. t. 187; Sims, Bot. Mag. 1. 1064, not 

 Jacq. E. neria/idm, Griseb. Fl. W. Ind. 415 (1864). E. Catesbcei, Don? Neriandra sub- 

 erecta, A.DC. Prodr. viii. 422. Urechites suberecta, Muell. in Linn. xxx. 444, in part ? 

 S. Florida and Keys, Bloclyctt, Palmer. E. suberecta, Jacq. & Griseb., is hardly distinguish- 

 able except by the longer throat and shorter lobes of the corolla, and the unappendaged 

 anthers! (W. Ind.) 



E. Sagrsei, A.DC. Much smaller than the preceding: leaves half to barely an inch 

 long, the margins more revolute : peduncles longer than the leaves, somewhat racemosely 

 flowered : calvx-lobes ovate-subulate and much shorter than the tube of the yellow (barely 

 inch long) corolla, the lobes of which are half the length of the throat : anthers bluntish, 

 unappendaged : beak of the seed plumosely-comose to the base. Prodr. viii. 450 ; Griseb. 

 I.e. Bhabdadenia Sayrai, Muell. 1. c. 435. Pine Key, Florida, Blodgett. (W. Ind.) 



2. EUECHITES, A.DC. Corolla truly salverform, i.e. cylindrical up to the 

 limb, but the upper half (above the insertion of the stamens) abruptly somewhat 

 larger. Echites & Stipecoma, Muell. 



E. umbellata, Jacq. Glabrous, twining : leaves ovate or oval (2 inches long), mucro- 

 nate or short-pointed, slightly cordate : peduncles exceeding the leaves, somewhat umbel- 

 lately 3-7 -flowered : calyx short : corolla greenish-white, 2 inches long, narrow-tubular : 

 the tube abruptly swollen a little below the middle, thence tapering upwards, 4 times the 

 length of the roundish lobes : anthers rigid, slender-hastate, bluntish and unappendaged 

 at tip: coma sessile on the top of the seed. Amer. Pict. t. 29 (Catesb. Car. i. t. 58) ; 

 Chapm. 1. c. ; Griseb. 1. c. S. Florida. (W. Ind.) 



9. TRACHELOSPERMUM, Lemaire. (TW/^.rv, cnsQuct, i.e. seed 

 with a neck : unhappily it has none or hardly any : the proposer, ignorant of 

 this, gave the name in reference to Rhynchospermum.) - -Twining shrubby plants ; 

 with oval or oblong opposite short-petioled leaves, and small or smallish flowers 

 in terminal or lateral loose cymes : corolla white or greenish-white. " Lemaire, 

 Jard. Fleur. i. t. 61 ; Moore & Henfr. Mag. Bot. ii. 113 ;" Benth. & Hook. Gen. 



