818 L. Radlkofer. — Sapindaceae. 



36. Grossonephelis Bam. 



Crossonephelis Baill. Hist. PI. V. (1874) 352, 400 n. 15; Radlk. in Sitzungsber. 

 bayer. Akad. XX. (1890) 244, 285 et in Engl. u. Prantl, Nat. Pflanzenfam. III. 5. 

 (1895) 321; Grandidier, Hist. PI. Madag. t. 249. 



Flores spurie polygami, masculi et feminei(£ mentientes) in iisdem inflorescentiis, 

 reguläres, parvi. Galyx profunde 4-partitus, partibus deltoideis valvatis, crassiusculis, 

 sordide incano-tomentellis intus puberulis reflexis denique deciduis. Petala 0. Discus 

 placentiformis, crassiusculus, subfuscüs, glaber, sulcis 4 oppositisepalis staminum 

 filamenta excipientibus exaratus, inde ^ conspicue 4-lobus, lobis alternisepalis, margine 

 denique ^ deflexis. Stamina 4 (floris £ ananthera, t. Baillon), sepalis opposita, intra 

 discum inserta, glabra; filamenta arcuata, basi disci sulcis impressa, breviter exserta; 

 antherae ovatae, crassiusculae, introrsae, dorso concavo supra basin emarginatam 

 affixae; pollinis granula subglobosa, 3-sulcata, sulcis 1-porosis. Germen (floris <$ rudi- 

 mentarium, dense albido-villosum) compressiuscule subdidymum, 2-loculare; Stylus 

 subulatus, basi incrassatus, apice bilobus, lobis dorsalibus intus stigmatosis; gemmulae 

 in loculis solitariae, axi supra basin affixae, micropyle extrorsum infera. Fructus (vix 

 semimaturus tantum visus) baccatus (ut videtur), estipitatus, a lateribus compressus, 

 suborbicularis, aequaliter vel abortu inaequaliter 2-lobus tumque gibboso-curvatus, 

 inter lobos sulcatus, rugosus, stylo (lobi fertilis evolutione ad latus oppositum rejecto 

 patenti) rostratus, dense sordide tomentellus, intus apice et basi pilis (et basilaribus 

 quidem retrorsis) adspersus, sarcocarpio crassiusculo, sicco coriaceo-crustaceo. Semen 

 (juvenile) loculo conforme, ellipticum, lateraliter compressum, longitudinaliter affixum. 



Arbor parva, glabra, innovationibus tantum brevissime puberulis. Folia sparsa, 

 ad summos ramulos conferta, 2 — 3-juga, petiolata, exstipulata; foliola opposita, ob- 

 longa, inferiora minora ovalia, omnia utrinque obtusa vel apice emarginata basi acutius- 

 cula, subsessilia, integerrima, pinnatinervia, chartaceo-membranacea, supra laevius- 

 cula nitida fuscescentia, subtus reticulato-venosa opaca pallida hicque in nervorum 

 axillis barbata, ceterum glabra nee nisi pilis singulis minutis subulatis patentibus 

 glandulisque microscopicis clavatis stipitatis majusculis raris praesertim subtus adspersa, 

 diaehymatis stratis superioribus tanninigeris, crystallis non nisi prope nervös et venas 

 obviis, cellulis secretoriis nullis, epidermide non mucigera nee punctata. Thyrsi spici- 

 formes, ad apices ramorum laterales, folia aequantes vel plus duplo superantes, dense 

 cymulis glomeriformibus obsiti, ut et bracteae lineari-subulatae pedicellique breviusculi 

 basi articulati cano-tomentelli. 



Species 1, madagascariensis. 



Genus ab ejusdem tribus generibus affinibus apetalis (Placodiscus et Melanodiscus) distinetum 

 staminibus 4 et disco insigniter 4-sulcato, insuper epidermide omnino non punctata. 



C. Pervillei Baill. in Adans. XI. (Jul. 1874) 245 n. 96!, Hist. PI: V. (1874) 400, 

 annot. 2 et in Grandid. Hist. Madag. (1893) t. 249; Radlk. in Engl. u. Prantl 1. c. 322 et 

 in Palacky\ Gat. PI. Madag. V. (1907) 52; Choux in Mem. Acad. Malg. IV. (1927) 38. 



Arbor 18-pedalis (t. Pervill6). Folia petiolo circ. 3 cm longo adjeeto 10—15 cm 

 longa; foliola superiora ad 8 cm longa, 3 cm lata, inferiora circ. 4 cm longa, 2 cm lata; 

 petiolus 3-angularis, supra planus, striatus, puberulus. Thyrsi 8 — 24 cm longi, plerum- 

 que eramosi, varie curvati. Flores ad 3 mm longi. 



In Malagassiae insula Nossib6: Perville n. 448, cum Boivin communicata 

 n. 2166/3! (m. Jan., fl., Hb. Paris.); Hildebrandt n.3296! (m. Dec. 1879, fl. et fr. 

 juven.; Hb. Berol., Kew. etc.). 



37. PlagioSCJphuS Radlk. 



Plagioscyphus Radlk. in Sitzungsber. bayer. Akad. VIII. (1878) 335, XX. (1890) 

 240, 244, 285 et in Engl. u. Prantl, Nat. Pflanzenfam. III. 5. (1895) 322. 



Flores irreguläres, polygami ( ?, masculi tantum suppetebant). Calyx parvus, 

 carnosulus, 5-partitus, lobis imbricatis, duobus exterioribus late triangularibus acutis, 



