216 THE JOURNAL OF BOTANY 



In the inflorescence, H. patens displays the characteristic 

 arrangement typical of the genus,- and I find no variability in this 

 regard in the direction of the aberrant H. chrysantha (q. v. supra). 

 The corolla is essentially of the smaller type, and is always tubular, 

 being never appreciably inflated above. The calyx-teeth are of 

 the very short, broad, erect type more usual in the genus ; the 

 more conspicuous calyx-lobes of H. calycosa, H. lutea, H. axillaris, 

 H. xerocarpa, H. ovata, and H. Bovirosce do not appear to be 

 foreshadowed among the forms of H. patens. 



The following features, then, may be suggested as constant 

 and critical for this species : — Leaves usually three, sometimes 

 more, at each node, pubescent on lower surface, sometimes on the 

 upper also, and generally on the secondary and tertiary veins and 

 in the meshes of the reticulum as well as on the median vein ; 

 the calyx has very short erect teeth with broad base ; the corolla 

 is tubular, never exceeding 2 cm. in length, and is markedly 

 ventricose at the base ; the stamens at their shortest almost reach 

 the corolla-mouth, and sometimes exceed it. 



The following appears to be a well-marked variety of H. patens ; 

 there seems to be no justification, at any rate, for regarding it as 

 a distinct species : — ■ 



P AXiLLAROiDES, var. nov. Foliis angustis elliptico-oblongis 

 sparse pubescentibus, cymis paucifloris axillaribus plerumque in 

 ramulorum dichotomorum furcis apparentibus. 



Hab. Ind. Occ. : de PontJiieu ! in Hb. Mus. Brit. 



This variety bears a superficial resemblance to H. axillaris ; 

 but it is readily separated therefrom by its ternately whorled 

 pubescent leaves. 



27v H. brachystemon, sp. nov. Foliis glabriusculis verticil- 

 latis, corolla inter minores tubulosa, staminibus corollge medium 

 vix excedentibus. 



Hab. New Grenada, Ocana : Schlim, 547 ! Hb. Kew. 



Frutex (?) ramulis gracilibus glabris subteretibus-, foliis ter- 

 natim verticillatis ellipticis aliquanto asymmetricis 8-11 cm. x 

 4-5 cm. acuminatis acutis basi in tenerum petiolum^ ad 3 cm. 

 longum angustatis supra glaberrimis subtus glabratis cystolithis 

 frequentibus, stipulis triangularibus obtusis ad 3 mm. longis, 

 cymis minute pubescentibus paucifloris, calycis totius 3-5 mm. 

 longi tubo elliptico glabrato lobis latis necnon brevissimis, corollse 

 tubo glabro 1-5 cm. longo parum ventricoso lobis 1 mm. longis x 

 2-1 mm. latis obtusis margine sinuato, staminum linearum antheri- 

 bus 5 mm. filamentis 2 mm. longis 2-8 mm. supra corollae basin 

 insertis, stylo filiforme stamina subaequante, bacca . . . 



This species is unique, among those described in the present 

 paper, in the shortness of the stamens relatively to the corolla- 

 tube, and is recognizable by its slender brauchlets and petioles, 

 and somewhat asymmetric leaves. 



