ve 
PLATONIA. 24 
1. Pl. insignis Mart. 
Epidermidis cellulæ recte v. curve delineatæ, parietibus lateralibus 
in epidermide supera cuneato-incrassatis. Hypoderma duplex, supe- 
rum 4-2-inferum 1-seriatum. Mesophyllum exquisite centricum. 
2, PI. grandiflora Planch. et Triana. 
1. PL insignis Mart., Nov, Gener. et Spec., MI, 169, t. 289 et 288, 
fig. 2; Planch. et Triana, loc. ciii; ; Engl., loc. cit. (pro parte); Vesque, 
Eiht. IIT, t. CXI et CXII. 
Para, Marajo et Ceara (Martius). — Juxta Caripi, Para, Spruce, Aug. 1849. 
— Brasilia Weddell, 2364. 
Rami robusti, quadrato-compressi, cortice griseo vestiti, foliorum 
delapsorum cicatricibus transverse elongatis notati. Folia elliptica v. 
obovata petiolata, apice obtusa v. rotundata v. obtuse acuminata, 
basi obtusa, coriacea nitida, margine repanda, 9-15 em. longa, 5-7 em. 
lata, petiolo 1-1,5 cm. longo, nervo medio valido, subtus prominente, 
lateralibus tenuibus creberrimis, oblique parallelis (60°-70°), utrinque 
prominulis. 
Epidermidis supera et inferæ cellulæ undulatim delineat:e, pariete 
externa in sinubus parietum lateralium obscure punctatà, tabulares, 
cuticulà mediocri levi. Stomata elliptica, cellulis epidermidis minora, 
cellulis aecessoriis magnis, sæpius lunatis. Hypodermatis cellulæ 
1-ordinatim dispositæ, tabulares v. fere cubicæ, cellulis epidermidis 
superficie paulo majores. Mesophyllum centricum, circit. 0,33 mm., 
incluso hypodermate 0,36 mm. crassum. Cellulæ paliformes faciei 
superæ et inferze 3- A-ordinalim dispositæ, latæ, 1-3-plo longiores quam 
latiores. Nervorum lateralium fasciculi immersi, utrinque fibris me- 
chanicis numerosis armati. Glandulæ canaliformes mediocres in me- 
sophyllo. Crystalla echinata in mesophyllo et hypodermate. 
Flores magni. Alabastra adulta circit. 5,5 cm. longa, 4 cm. lata, 
ovata. Sepala 5, quincumciatim imbricata, petalis multoties minora, 
ovalo-orbiculata v. ovato-triangularia. Petala 5, contorta, leviter 
inæquilatera, ovato-elliptica. Discus cupuliformis crassus, margine. 
5-gono-undulatus, angulis calliformibus extus prominentibus petalis 
alternatibus. Stamina numerosa in phalanges 5 petalis oppositas 
disco extus adnatas distributa, filamentis basi breviter connatis, plu- 
riseriatis, extus longe ad apicem usque antheriferis. Ovarium obverse 
pyriforme, 5-loculare, in stylum longum, apice 3-fidum productum. 
Sligmata ad apicem styli ramorum poriformia. . 
 L'unique fleur que j'ai pu examiner était en assez mauvais étals - 
