384 MR. J. MIERS ON THE HIPPOCRATEACEÆ OF SOUTH AMERICA. 
obtuse acumen being nearly + in. long and 23 lines broad; the panicle is only 1 in. long, 
the peduncle 5 lines, the primary and secondary branches 3 and 2 lines long; the flowers 
are all wanting in the specimen, or not sufficiently perfect for examination. 
3. TONTELEA LONGIFOLIA, nob.: Tonsella malpighiefolia, Mey. Esseq. p. 20: scandens 
ramulis (sæpe tortis) teretibus, granuloso-rugulosis : foliis oppositis, oblongo-lanceo- 
latis, imo rotundiusculis vel obtusis, apice sensim vel citius acuminatis, acumine 
acutissimo vel obtusiore, fere integris, margine tenuiter cartilagineo obsoletissime 
sinuato-serrato et reflexo, supra opace viridibus, subnitidis, impresse punctatis, nervis 
tenuissimis utrinque circa 10 valde divaricatis et arcuatim nexis, costa prominula, 
subtus rubidule brunnescentibus, pallidioribus, opacis, nervis vix prominulis, minute 
granuloso-punctulatis, punctis sæpissime nigris; petiolo fusco, profunde canaliculato, 
valde rugoso, limbo 12-14-plo breviore; stipulis ovato-lanceolatis, acuminatis, deci- 
duis: paniculis in ramis annotinis, a basi ramosis et hine pseudo-fasciculatis, aut in 
axillis ramorum juniorum simplicibus vel geminis, folio 5-6-plo brevioribus, multi- 
divisis, pedunculis brevissimis, ramis ramulisque subalternis, compresso-angulatis, 
fuscis, glabris, minute rugulosis, unibracteolatis, multifloris; floribus subparvis, 
-  &albido-viridibus, sicco aurantiacis; sepalis rotundiusculis, fuscis, glabris, margine 
erosulis; petalis oblongis, triplo longioribus, carnosulis, marginibus membranaceis, 
suberosulis; disco breviter tubuloso, margine crenato; ovario intra discum occluso ; 
stylo brevi; stigmatibus 3, brevibus, acutis, divaricatis. In Guiana ad Essequibo 
(Meyer): v. s. in herb. Mus. Brit., Guiana Brit. (Schomburgk, sine numero) ; in hb. 
Hook. et meo, Guiana (Schomb. 959). 
These specimens agree with Meyer’s description of his Tontelea malpighiæfolia, which 
he confounded with the Hippocratea malpighiefolia of Rudge, a very different plant, 
with which he was evidently unacquainted. The Museum specimen accords with Meyer's 
account in the size of its leaves, which are 74 in. long, 23 in. broad, on a petiole of 
5 lines; in the other specimens the leaves are 4-54 long, 13-2 in. broad, on a petiole 
4-5 lines long, and they are nigro-punctate beneath ; but as they agree in other respects, 
I have considered the plants specifically identical. The axillary panicle is 1-13 in. long; 
the flower expanded is nearly 2 lines in diameter. "The leaves, petioles, branches of the 
inflorescence, and the flowers contain numerous spiral vessels, very conspicuous when 
the parts are broken. 
4. TONTELEA ATTENUATA, nob.: seandens, ramis ramulisque cinereo-glaucis, junioribus 
fusco-rufescentibus, teretibus, angulato-sulcatis, axillis subdilatatis: foliis oblongo- 
lanceolatis, imo acutis vel subobtusis, a medio sensim attenuatis et longe acuminatis, 
acumine obtusulo, naviculari-recurvo, integris, margine cartilagineo revoluto et 
obsolete sinuato, supra nitentibus, fusco-viridibus, nervis tenuissimis patentim diva- 
ricatis immersis, marginem versus arcuatim nexis, costa carinata prominula, subtus 
pallidioribus, rubescenti-glaucis, opacis, nervis vix prominulis, granulis elevatis 
remotiuscule rugulosis; petiolo fusco, anguste canaliculato, granuloso-rugoso, limbo 
9-plo breviore; stipulis minutis, acutis, valde deciduis : paniculis in axillis sæpius 6, 
