72 
CONTRIBUTIONS TO BOTANY. 
confirmed by some of the specific characters given in the ‘ Pro- 
dromus/ — for instance, in the punctate hollows mentioned in 
the axillary nodes of his P. foveolata, which exist in many spe- 
cies of Adenocalymna , and which I have not observed in any 
other genus. DeCandolle, however, describes the capsule as 
being somewhat flatly compressed and smooth : the flattening of 
the valves in the dried specimens may probably arise from their 
warping in desiccation, as I have observed in those of Adeno- 
calymna ; and the tubercular rugosities, as described in my 
plants, may be only a specific character ; but it is impossible to 
determine these points without comparative examination. Ade- 
nocalymna must be placed in the division Monostictides of De- 
Candolle, not among the Pleiostictides, where he arranged it. 
The following is an emended diagnosis of the genus : — 
Adenocalymna, Mart. — Calyx tubuloso-campanulatus, coria- 
ceus, ssepius 5-dentatus, rarius fissus, versus apicem glandulis 
grossis disciformibus viridibus semi-immersis instructus. 
Corolla tubulosa, imo coarctata, bine inde subcampanulata, 
extus ssepius pulverulento-velutina, limbo 5-lobo, lobis sub- 
aequalibus, rotundatis, quorum 3 ereetioribus. Stamina 4, 
didynama, inclusa, cum sterili inter 2 breviora ; filamenta 
filiformia, glabra, apice incurva ; antherce per paria conniventes, 
singulfe 2-lobse, lobis oblongis, apice affixis, segregatis et 
divaricatissimis, flexione filamentorum axi parallelis. Ovarium 
oblongum, rugulosum, 2-loculare, pluriovulatum, disco pul- 
vinato sulFultum : shjlus filiformis, glaber, longitudine sta- 
minum ; stigma bilamellatum. Capsula cylindrica, botuli- 
foi’mis, ssepe tuberculis elevatis poriferis subserialibus rugosa, 
2-locularis, 2-valvis, valvis coriaceis dissepimento crasso par- 
allelis, replo bipai’tibili utrinque subtenui a valvis solubili. 
Semina plura, in utroque margine dissepimenti 1-seriata, 
transversa, magna, crassa, aptera, crebre coarctata, vix imbri- 
cata, compresse suborbicularia, dorso convexiuscula, ventre 
subangulata, hilo pergrandi ovali versus basin notata: testa 
dura, Crustacea, nitida, longitudinaliter 2-locularis, septo in- 
tegro coriaceo foramine centrali pro radiculse receptione fe- 
nestrato : integumentum internum conforme : embryo exalbumi- 
nosus, testa configuratus. lobis cotyledonaribus 4, crassis, car- 
nosis, plano-convexis, per paria adpressis et in locellis integu- 
mentorum nidulantibus, radicula perparva, tereti, loborum 
quarta parte longitudinis, centro inter eos prorsum adnata, 
et in foramine septi recon dita, oblique et horizontaliter cen- 
trifuga. 
Frutices scandentes America meridionalis intertropica, plerumque 
