MR. J. MIERS ON THE HIPPOCRATEACEA OF SOUTH AMERICA. 365 
A species near P. lepida, differing in its more coriaceous elliptie leaves, trichotomous 
panicles, and more minute flowers. I find in the maps a locality called San Luiz, over 
the first range of the Cordillera, in the latitude of the Port of Santa (9° S.), not far from 
the upper sources of the river Marañon. The leaves are 2-3 in. long, 12-16 lines broad, 
on a petiole 41—5 lines long: the panicle is 12-15 lines long, its peduncle 4 lines, the 
primary branches 4 lines, the secondary 2 lines long. 
8. PRISTIMERA TENELLA, nob.: ramulis tenuibus, subteretibus, albidulis vel pallide 
brunneis, glabris, subscabrido-rugulosis, cortice rimoso : foliis oblongis, imo cuneatis 
aut subcuneatis et in petiolo subdecurrentibus, apice obtusis, obsolete mucronatis, 
suberenato-serrulatis, tenuiter flaccidis, glaberrimis, pallide viridibus, concoloribus, 
nervis tenuissimis arcuatim nexis utrinque circa 9 venisque reticulatis vix prominulis, 
utraque facie opacis, sub lente creberrime granulosis; petiolo tenuissimo, lvi, 
sulcato, limbo 6-plo breviore: paniculis axillaribus, folio dimidio brevioribus, pedun- 
culo tenuissimo, longiusculo, compresso-suleato breviter bis dichotome diviso, ssepe 
cum flore pedicellato in dichotomiis, ramulisque striolatis, glaberrimis, ultimis flores 
9 parvos brevissime pedicellatos gerentibus; bracteolis parvis, oblongis, membra- 
naceis, denticulatis ; sepalis subrotundis, in medio crassioribus, scabridule rugulosis, 
marginibus membranaceis pectinato-fimbriatis ; petalis duplo longioribus, ovatis, 
pallide flavis, membranaceis, laciniato-denticulatis, rotatim expansis; disco sepalis 
dimidio breviore, fusco-viridulo, crenato, margine basali anguste expanso; ovario 
subtrilobo, sulcato, angulis tumidis supra discum protensis. In Mexico: v. s. in 
herb. Hook., Oaxaca (Galleotti, 7154, sub Hippocratea acapulcensis) ; San Blas et 
Guadalaxara (Coulter, 851). 
This plant bears, at first sight, somewhat the habit and appearance of Tontelea 
Hookeriana, nob. (Hippocratea acapulcensis, Hook., non H., B., K.), from which it differs 
in its inflorescence, its pectinated sepals and petals, in its disk, and its exserted ovary, 
with 3 prominent tumid lobes. The axils of its extremely slender branches are 1-17 in. 
apart; theleaves are 21-21 in. long, 11-12 lines broad, on a very slender recurving 
petiole 5-6 lines long. The slender axillary peduncle is 15 lines long, its primary 
branchlets 2 lines, the secondary 13 line long, bearing on its bracteolated apex 3 flowers 
on short pedicels ; the flower expanded is 14 line in diameter. 
9. PRISTIMERA CORIACEA, nob.: Hippocratea coriacea, Griseb. Cat. Pl. Cub. 283 : foliis 
elliptico-oblongis, aeutiusculis, imo cuneatis, glabris, integerrimis, coriaceis ; petiolo 
limbo 8-plo breviore: paniculis axillaribus, folia suprema æquantibus, divaricatim 
trichotomis, ramis dichotome divisis, teretiusculis, glabris ; petalis oblongis, sinuatis, 
flavis: capsulis immaturis, semiobovatis. In Cuba occid. prope Matanzas (non 
vidi). 
It is evident from these short details, cited from Dr. Grisebach, that this plant does 
not belong to Hippocratea ; and I have referred it to this genus on account of the form of 
its capsular fruit. Its leaves are 2 in. long, 1 in. broad, on a petiole 3 lines long: the 
petals are 13 line long, and three times the length of the sepals. Dr. Grisebach states 
VOL. XXVIII. 3 D 
