MR. J. MIERS ON THE HIPPOCRATEACEA OF SOUTH AMERICA. 355 
sula, margine glabro late membranaceo profunde pectinato-fimbriata, dentibus sinuatis et longe cus- 
pidatis, rotatim expansa, æstivatione quincuncialiter valde imbricata. Discus depresse pulvinatus, 
medio cavatus, sparse rigide pilosulus, margine basali in laminam tenuiter latam glabram 5-cre- 
natam sursum involutam expansus. Stamina 3, intra discum inserta; filamenta membranacea, 
compressa, imo latiora, glabra, vel margine ciliata; anthere subglobosæ, cruciatim sulcatæ, sub- 
4-loculares, sine conneetivo puncto minuto dorsali sub apice filamenti extrorsum affixæ, rima trans- 
versali bivalvatim patentissime dehiscentes, valvis albis, membranaceis; pollen minute graniforme, 
reticulatum, luteum. Ovarium depressum, trigonum, trilobum, angulis adscendentibus, rigide 
pilosis, 8-loculare, loculis pluriovulatis; stylus longiusculus, subulatus, trigonus, angulis piloso- 
ciliatis; s/igma breve, album, breviter trilobum, lobis tenuiter teretibus, erecto-conniventibus. 
Capsule 3, distincte, forma earum Hippocratee, sed convexiores, 8-sperme. Semina per paria 
opposita, in utraque valva parallele imbricata, imo affixa, samaroidea; testa superne in locellum 
embryoniferum nuciformem coriaceum oblique ovatum incrassata, inferne in alam latam paulo lon- 
giorem membranaceam expansa, margine externo in chordam crasse coriaceam raphigeram tume- 
facto, raphe a basi adscendente in chalazam apicalem intus spectantem terminata; integumentum 
internum crassiuscule membranaceum, ad testam subadheerens; embryo locellum testze implens, ex- 
albuminosus, ovatus, utrinque convexus, crasse carnosus, e cotyledonibus arcte conferruminatis con- 
stans, extus cellulis longis oleiferis repletis, radicula cum eis confusa, minima, infera, subcentrifuga. 
Arbores Americe tropice subscandentes: rami adscendentes, divaricatim expansi; ramuli subpen- 
dentes, oppositi vel sepe subalterni, verruculose asperati: folia ovata vel oblonga, integra, rigide 
coriacea, utrinque scabridula, breviter petiolata: paniculæ axillares et terminales, alternatim ramose, 
ramis dichotome divisis, rigide pilosulis; flores pro ordine majusculi. 
1. PRIONOSTEMMA ASPERA, nob.: Hippocratea aspera, Lam. Ill i. 101; Poir. Dict. 
Suppl. i. 606: Tonsella scabra, Vahl (in parte), Enum. 29: Salacia scabra, DC. (in 
parte), Prodr. i. 570: volubilis, ramis fusco-rubentibus, obtuse 6-S-angulosis, albes- 
centibus, lenticellatis ; ramulis sæpe contortis, scandentibus, subalternis, paten- 
tissime divaricatis, obscuris, granuloso-asperulis: foliis oppositis vel subalternis, 
patentibus vel recurvis, ovatis, imo rotundatis vel subcordatis, apice acumine brevi 
obtuso naviculari-recurvo repente apiculatis, integerrimis, margine cartilagineo sub- 
revoluto, rigidis, valde coriaceis, supra pallide viridibus, nitentibus, cireum nervos 
sulcatis, nervis tenuibus utrinque 6 fere immersis, subtus concoloribus, opacis, nervis 
arcuatis venisque transverse reticulatis costaque prominentibus, utrinque granulis 
crystallinis minutis punctulatis, tactu asperulis; petiolo tereti, canaliculato, fusco, 
ruguloso, limbo 12-plo breviore; stipulis parvis, acutis, caducissimis: paniculis ax- 
illaribus, longiuscule pedunculatis, ramis subalternis, subpatentim divaricatis, dicho- 
tome divisis, compresse angulosis, rigide tomentellis, cum ramulis brevissimis in 
dichotomiis; braeteolis parvis, acutis, divaricatis; floribus majusculis, in ramulis 
ultimis approximatis, pallidis, pilosule tomentellis; petalis orbiculatis, unguiculatis, 
rotatis, in medio crassiusculis et utrinque pilosulis, ad marginem late membrana- 
ceum glabris, et profunde pectinatim fimbriatis; disco depresse pulvinato, sparse 
pilosulo, margine late expanso glabro tenuiter incurvo subpentagono; ovario 
trigono, valde depresso, angulis elevatis longe rigido-pilosis ; stylo longiusculo, subu- 
lato, trigono, angulis piloso-ciliatis ; stigmate brevissime 3-fido, laciniis conniventibus : 
capsulis 3, distinctis, majusculis, obovatis, utrinque convexiusculis, compressis, infra 
