Pterostyrax. Iqq 



in Dict. Gard. II. (1886) HO, fig. <66, 167; Hemsl. in Journ. Linn. Soc. XXVI 

 (1889) 76; Gurke in Engl. u. Prantl, Pflzfam. IV. \. (ISOI) 176 fig. 9\A—G. — 

 Arbor 10 m alta (ex Wilson); rami subteretes, juniores parce stellato-pilosi demum 

 glabrescentes; folia petiolata, petiolo I— 2 cm longo, oblonga vel obovato-ob longa, 

 6,5 — 17 cm longa, 3 — 9 cm lata, basi rotundata vel cuneata, apice abrupte interdum 

 breviter acuminata, apice ipso acutiuscula, membranacea vel subpapyracea, argute irregu- 

 lariter minutissime denticulata, juniora supra hinc inde pilis stellatis vestita sublus 

 dense breviter canescenti-tomentosa, adulta supra fere glabra subtus parcissime stellato- 

 pilosa, nervis lateralibus 8— H, marginem petentibus, nervis venisque supra paullo sublus 

 manifestius prominentibus. Flores \ cm longi albidi, fragrantes, in ramulis hornolinis 



ex axillis foliorum superiorum Orientes et terminales in paniculas multifloras, 13 26 cm 



longas, pyramidatas ramis secundariis brevibus, fere speciformibus, ca. 3 cm longis dis- 

 positi, unilateraliter congesti, subsessiles vel brevissime pedicellati, pedicello calycera versus 

 annulato; rhachis inflorescentiae griseo-stellato-pubescers; bracteae minutae, lanceolatae 

 mox caducae; calyx 4 mm longus, ovario adnatus, margine truncatus, distincte 5-raris- 

 sime 6-denticulatus, dentibus lanceolatis, acutis, longe pilosis, 1,5 mm longis, nenis 

 quinque cum dentibus alternantibus prominulis percursus, velutino-flavescenti-pilosus ; 

 corolla 5-partita, calycis fauci affixa, decidua, tota utrinque pilis minutissime stellatis 

 dense obtecta; petala 9 mm longa, 1,5 mm lata, nonnunquam ima basi subcohaerentia, in 

 aestivatione imbricata, longe oblonga, acutiuscula, integerrima; stamina 10, subaoqualia, 

 filamentis subliberis vel in parte inferiore interdum latcraliter connatis, utrinque praecipue 

 basim versus pilis simplicibus longis vestitis, membranaceis, antherae lineales; granula 

 pollinis globoso-trigona, in quo vis angulo poro hemisphaerico praedita; ovarium pro maxima 

 parte inferum, 3 — 4-, interdum 5-loculare, multiovulatum ; stylus elongatus, coroliae 

 lobis longior, parte ^5 inferiore tomentosus, pilis longis subhirsutis vestitus, stamina 

 superans, apice indistincte 3-lobus; ovula in quoque loculo plura, medio axi affixa. 

 superioribus ascendentibus , inferioribus pendulis. Drupa cylindrica utrinque altenuata, 

 decem-nervia , exalata, extus densissime flavescenti-hispida (Fig. 1 0], stylo tomentoso; 

 endospermium parvum, embryo cotyledonibus planis, radicula brevioribus. — Fig. 18. 



Nota. Pterosfy7-ax micranthus Sieb, et Zucc. ab auetoribus pro speeie dislincta Habitus 

 mea opinione ad Pt. hispidus pertinet, quod jam clarissimi auetores verisimile esse pulavenint 

 (Abb. Akad. München IV. 3. [1846] 132). 



Japan: Nikko (K. Saida), Nippon, Fudziyama (Tschonoski), Hansue (Tschonoski). 



China: Distrikt de Tchen-keou-tin, Ost-Su-tchuen 1400 m ü. M. (Farges n. 950); 

 Prov. Szechuan (Henry n. 5595, 5595 5); Nan ch'uan (Rosthorn n. 2075); Wesl- 

 Hupeh (Wilson n. 671); Hupeh (Henry n. 5595c). 



Einheimischer Name: Asagara (ex Franch. et Savat.). — Herb. Berlin, München, 

 Wien, Paris. 



3. Pt. psilophyllus Diels msc. n. sp. — Frutex 7 m altus, rami novelli parce stellato- 

 puberuli, foliorum bene evolutorum petiolus pilosulus 6 — 8 mm longus, laniina 8—9 cm 

 longa, 5 — 5,5 cm lata, membranacea mox supra fere glabra subtus praecipue ad costam 

 atque venas parce stellato-pilosa, ceterum glabra, ovato- vel obovato-elliptlca , dentibus 

 minutis praedita. Inflorescentia 8 — 12 cm longa, multiflora; flores 1,5 cm longi, bre- 

 vissime pedicellati vel subsessiles; calyx stellato-tomentellus hispidusque, lubo 2 mm longo, 

 dentibus 2,5 mm longis, quam tubus saepe longioribus lanceolatis acutissimis; corolla 

 5-partita, albida (ex Wilson), lobis in aestivatione imbricatis, 8—10 mm longis, 3 — 

 4 mm latis, extus stellato-tomentellis ; stamina inaequalia, longiores 14 mm, breviores 

 10 mm longa, binis nonnunquam alte connatis; ovarium obovatum, maxima pro parte 

 inferum, multiovulatum; stylus pilosus 12 — 15 mm longus; ovula in quoque loculo plura 

 axi medio affixa, superioribus ascendentibus inferioribus pendulis. 



China: Nantö (Wilson n. 198, blühend im April 1900). 



Nota. Species Pt. corymboso in Japonia meridionali vigenti valde affinis, sed inflorescen- 

 tiae ramis sparsioribus. calycis dentibus longioribus, calycis indumento mullo asperiore multum 

 discrepat. 



