22 F - Pax - — Aceraceae. 



stamina inclusa; Stylus stigmatibus aequilongus. Fractus ad g 1 ^ cm M»gi alae horizontales, 

 basi contractae. 



Osthimalaya: Sikkim (Hooker f. et Thomson, C. B. Clarke, Anderson n. 408, 

 Griffith n. 926), Bergwälder zwischen 2 — 3000 m , bis 20 m hohe Bäume; Yunnan 

 (Henry n. 10495). 



24. A. erianthum Graf v. Schwerin n. sp. — Arbor. Folia 9 — 10 cm longa, 

 10 — 12 cm lata, glabrescentia , basi rotundato-truncata vel aperte cordata, 5-loba, lobi 

 caudato-acuminati, inferiores quam intermedii minores, omnes argute serrulati. Inflores- 

 centia racemosa, composita, multiflora ; sepala ovata, obtusa, intus albo-villosa, petala paullo 

 breviora, glabra; stamina inclusa; discus densissime albo-villosus. 



Gentralchina: Prov. Szech'uan (Henry n. 8989). 



25. A. sinense Pax in Hook. Icon. pl. XIX. (1 889) ad t. 1897. — Arbor glaberrima. 

 Folia nitida, subtus pallidiora, glaucescentia, 9 — 1 1 cm lata, 6 — 8 cm longa, aperte cordata, 

 5-loba, lobi basi integri, apicem versus serrulati. Inflorescentia foliis coaetanea, glaberrima, 

 composito-racemosa, multiflora; sepala triangulari-oblonga; petala oblonga; Stylus elongatus, 

 Stigmata quam Stylus multo breviora. 



Var. a. typieUm Pax. — Alae angulo fere recto divergentes. 



Gentralchina: Prov. Hupeh (Henry n. 5641, 5831), Szech'uan (Bock u. v. Rost- 

 horn n. 793). 



Var. ß. eoncolor Pax. — Folia paullo majora. Fructus alae fere horizontales, cum 

 loculo fere 3 cm longae. 



Gentralchina: Prov. Szech c uan (Henry n. 7081). 



26. A. isolobum Kurz in Journ. As. Soc. Bengal. (1872) 302; Hiern in Hook. f. Fl. 

 Brit. India I. (1875) 694; Pax in Engler's Bot. Jahrb. VII. (1886) 253. — Folia profunde 

 triloba, glabra, lucida, acute serrulata, basi subcordata; lobi lanceolati, acuminati. »A 

 large glabrous tree. Leaves 3 — 4'/ 2 by 3 — 5 inch. wide; petioles 1 — 2 inch. Flowers and 

 fruit unknown.« 



Pegu (Kurz). 



Nota. Speciem non vidi; fortasse ad affinitatem A. trifkli Hook, et Arn. .spectat. 



27. A. pentapomicum Stewart in Brandis, Forest Fl. (1874) 111; Hiern in Hook. f. 

 Fl. Brit, India I. (1875) 694; Pax in Engler's Bot. Jahrb. VII. (1886) 254. — Folia 3-loba, 

 glabra, ad axillas nervorum barbulata, basi truncata vel cordata, lobi ovati, obtuse serrulati. 

 Pedunculi fasciculati. »A tree. Leaves 1 J / 2 — 4 ß y 2Y2 — 6 inch., pale on both sides ; lobes 

 about half the depth of the leaves, petioles |i/ 4 — 4 inch., thinly tomentose, when young, 

 afterward glabrate. Flowers unknown. Peduncles in short, little branched, corymbose cymes, 

 vvhich measure 2 — 3 inch. long. Fruit glabrous ; carpels 1 inch. long; wings venöse, slighlly 

 diverging, widening above, back nearly straight; cells somewhat nodose.« 



Nordwest-Himalaya: Von Kaschmir bis Kumaon, 800 — 1400 m (Hiern). 



28. A. sericeum Graf v. Schwerin in Mitteil, deutsch, dendrol. Ges. (1894) 75. — 

 Arbor parva. Folia chartacea vel coriacea, 5-loba, 1 1 cm lata, 9 cm longa, cordata, lucida, 

 subtus lutescenti-viridia, dense albido-tomentosa, secus nervös villosa, lobi lati, irregulariter 

 biserrati; petiolus vix canaliculatus, 7 — 8 cm longus, gemmam non occultans. Racemi 

 abbreviati dz duplo longiores quam lati. 



Kulturform hybrider Herkunft, an der sicher der sehr nahe verwandte A. pseudo- 

 platanus L. beteiligt ist; winterhart, aber bisher noch nicht verbreitet. 



29. A. ramosum Graf v. Schwerin in Mitteil, deutsch, dendrol. Ges. (1894) 75. — 

 Arbor parva. Folia ad 9 cm longa et lata, chartacea vel coriacea, 3-loba, biserrata, lobi« 

 laleralibus arrectis, basi lobulo parvo auctis, basi rotundata, rarius subcordata, supra pro- 

 funde viridia, secus nervös canaliculata, subtus pallidiora, glabra, nervis prominulis praedita. 

 Flores illis A. pseudo-platani minores, intus dense albo-tomentosi. Fructus alae 4% — 5 cm 

 longae, rectae, angulo obtusissimo divergentes ; ovarium mox glabrescens. 



Kulturform hybrider Herkunft ; der Autor [vermutet j eine Kreuzung zwischen 

 A. pseudo-platanus L. und A. campestre L., was mir nicht wahrscheinlich erscheint. 



