Dictyoneura. 1219 



93. Dictyoneura Blume. 



Dictyoneura Blume, Rumphia III. (1847) 163; Walp. Ann. II. (1851-1852) 212; 

 Radlk. in Sitzungsber. bayer. Akad. IX. (1879) 485, 499, 530, 600, XX. (1900) 264, 

 292 et in Engl. u. Prantl, Nat. Pflanzenfam. III. 5. (1895) 347. — Cupania (§ 4. Dictyo- 

 neura) Miq. Fl. Ind. Bat. I. 2. (1859) 567. — Cupania, part., Benth. et Hook. f. Gen. 

 I. 1. (1862) 399; Baillon, Hist. PI. V. (1874) 398; Boerlage, Handleid. Fl. Nederl. Ind. 

 I. (1890) 261, 263 (n. 4. Dictyoneura). 



Flores spurie polygami, c? et $ (^ mentientes) in eadem inflorescentia, reguläres, 

 parvi. Sepala (4— )5, suborbicularia, imbricata, ima basi connata, tenuiter mem- 

 branacea, glabra vel puberula, ciliolata, sub fructu persistentia subscariosa. Petala 

 nulla (vel in floribus luxuriantibus tantum unum alterumve et quideni subsquamulatum 

 obvium). Discus regularis, tumide annularis, tomentosus. Stamina 5, intra discum 

 circa pistilli rudimentum inserta, filiformia vel subulata (cicatrices latiores sub fructu 

 relinquentia), praeter apicem hirsuta, subexserta (floris 5 breviora); antherae ovatae, 

 introrsae, dorso supra sinum basilarem affixae, glabrae; pollinis granula depresse 

 triangulari-pyramidalia, 3-porosa. Germen (floris ^J rudimentarium, tomentosum) 

 ovatum, 2( — 3)-loculare, 2( — 3)-sulcatum; Stylus brevis, apice incrassato sulcis stigma- 

 tosis 2( — 3) suturalibus declivibus notatus; gemmulae in loculis solitariae, angulo 

 centrali ad basin affixae, erectae, campylotropae, apotropae. Fructus capsularis, sub- 

 drupaceus, parvus, obovoideus vel subglobosus, brevissime stipitatus, in nonnuUis 

 {D. acuminata, ohtusa) sulco levi ad loculorum dorsum notatus, pilis minutis glandulisque 

 lepidoideis minutissimis adspersus, granulatus, 3( — 3)-locularis, abortu plerumque 

 1-spermus, denique loculicide dehiscens, sarcocarpio sat crasso cellulis sclerenchymaticis 

 persito, endocarpio osseo ad loculorum fertilium dorsum interrupto i. e. epithelio 

 parenchymatico tantum repraesentato hicque (juxta valvarum margines) glabro, ceterum 

 tomentoso, rarius (in D. microcarpa et ohtusa) glabro, septo granulato semper glabro. 

 Semen ellipsoideum, arillatum, testa chartacea fusca e cellulis parenchymaticis tanni- 

 nigeris, superficialibus breviter staurenchymaticis, exstructa; arillus brevis adnatus, 

 ventre cupuliformis tertiam vel dimidiam seminis partem obvestiens, dorso fissura :£: 

 late cuneiformi interruptus. Embryo notorrhizus, amylo farctus; cotyledones trans- 

 versim superpositae, superiore majore; radicula dorsalis, basilaris. 



Arbores vel frutices, ramis teretibus sulcatis glabratis, cortice saepius cellulis 

 secretoriis instructo, innovationibus fulvo-tomentosis. Folia sparsa, exstipulata, petio- 

 lata, abrupte pinnata; petiolus teres; foliola 8 — 24, parvula vel sat magna, ovalia, 

 oblonga lanceolatave, apice obtusa, acuta vel longius acuminata, praesertim basi 

 inaequilatera, latere interiore latiore, petiolulata vel subsessilia, obscurius paucidentata 

 vel crenulata, tenuiter membranacea, diaphana, arcte subtiliter (sub lente utrinque 

 prominenter) reticulato-venosa, glabra, glandulis lepidoideis minutis e duplici, rarius 

 simplici cellularum strato exstructis fugacibus utrinque adspersa, in pluribus cellulis 

 secretoriis minutis, saepius raris instructa, inde (etsi minus conspicue) pellucido- 

 punctulata, epidermide non mucigera. Thyrsi axillares, spiciformes, simplices vel 

 pauciramosi in paniculas transeuntes, cymulas glomeruliformes paucifloras gerentes; 

 bracteae bracteolaeque subulatae, parvae, fulvo-tomentosae. Alabastra subglobosa. 

 Flores breviter pedicellati, inter minores. Gapsulae nunc grana piperis aequantes nunc 

 duplo triplove majores, e rubro fuscescentes. 



Species 9, in Sumatra (1), Borneo (1), Philippinis (2 — 3) et Nova Guinea (4—5) 

 indigenae. 



Genus inter Cupaniearum genera asiatico-oceanica calyce, ut in Cupania, biseriato-imbricato 

 praedita insigne floribus apetalis, staminibus 5, capsulis parvis, foliolis teneris arcte reticulatis. 



Conspectus specierum. 

 A. Capsula obovoidea, major, coccinea, intus adpresse pilosa 

 (sp. philippinenses). 



