Halesia. 07 



parce puberula denique glabrata; calyx pilosus, obsolete 4-lobus; corolla alba, glabra, 

 fere ad basin quadrifida; stamina ^2— 14 glabra vel breviter pilosa; fructus anguste 

 quadrialatus, stylo 1/3 fructus longitudine aequante coronatus. 



Var. moUis Lange. — Halesia tetraptera var. ß. mollis Lange in Botanisk Tids- 

 skriftXIX. \. (1894) 258, fig. 'la—g. — Differt a forma praec: foliis breviter et subito 

 acuminatis, magis adpresse serratis, subtus semper dense et molliter cano-villosis; corolla 

 majore, ad medium usque quadrifida, staminibus 8—12, longe pilosis, fructu majore 

 magisque late alato, stylo Ye fructus longitudine aequante coronato. 



Nota. In arboreto horti silvatico-botanici ad Charlottenlund pr. Hauniam per multos 

 annos utraque forma colitur. 



Var. Meehanii (Meehan) Sargent. — Halesia Meehanii Meehan in Card, and Forest V. 

 (i892) 534, flg. 91. — Halesia tetraptera Ellis var. Meehani Sargent in Card, and 

 Forest V. (1892) 611; Vilmor. et Bois, Fruticetum Vilmorinianum (1904) 180; 

 Beissner, Schelle u. Zabel, Handb. der Laubholz-Benennung (1903) 405. — Mohro- 

 dendron Meehani Sarg, in Sudworth, Nomencl. Arboresc. Flora of United States (1897) 

 323. — Mohrodendron carolinum (L.) Britt. var. Meehani Sarg. Silva N. America VL 

 (1894) 22. — Differt a typo floribus minoribus, brevius pedicellatis, foliis crassis rugosis, 

 distincte glanduloso-serratis in plantis juvenilibus. 



Einheimischer Name: Meehan's Silver-bell-tree. 



2. H. diptera Ellis in Phil. Trans. LL (1761) 931, t. 22, fig. B; L. Spec. 

 pl. ed. 2. (1762) 630; Gav. Diss. VL (1788) 338, t. 187; Michx. Fl. bor. amer. IL 

 (1803) 40; Nutt. Gen. IL (1818) 83; Loddiges Bot. Gab. XII. (1827) t. 1172; A. DC. 

 in DC. Prodr. Vm. (1844) 270; Miers, Gontrib. Bot. I. (1851 — 1861) 193; Chapman 

 FL S. States (1872) 271, ed. 3. (1897) 292; A. Gray, FL N. America IL (1878) 71; 

 Dippel, Handb. Laubholzkunde L (1889) 311, fig. 201; Koehne, Deutsche Dendrol. 



(1893) 486. — Halesia reticulata Buckley in Proc. Acad. Sei. Philad. (I86O) 444 

 (ex Gray). — Mohria diptera (L.) Britt in Gard. and For. VI. (1893) 434. — Mohro- 

 dendron dipterum (L.) Britt. 1. c. (Nov. 1893) 463; Sargent, Silva North America VL 



(1894) 23, t. CCLIX.; Sudworth, Nom. Arbor. FL U. States (1897) 324; SmaU, FL 

 South E. U. States (1903) 615; Sargent, Manual of Trees N. America (1905) 766. — 

 Carlomohria diptera Greene in Erythea I. (Dec. 1893) 246. — Frutex magnus vel 

 arbor parva (ex Gray), arbor rarius 10 m alta (ex Sargent), truncus usque 3 dm 

 diam., rami subteretes, juniores molliter griseo-stellato-pubescentes, demum glabres- 

 centes; folia alterna, petiolata, petiolo 1 — 2,5 cm longo, pubescente, late ovata vel fere 

 obovata vel oblonga, 7 — 15 cm longa, 4 — 8 cm lata, apice breviter abrupte acuminala, 

 basi rotundata vel interdum subcuneata, membranacea vel papyracea, minute irregula- 

 riter denticulata vel interdum latius et distinctius dentata, juniora supra griseo-veluüno- 

 pubescentia, subtus tomentosa, adulta supra praecipue ad costam pauce stellato-pilosa, 

 ceterum glabra, subtus pubescentia, nervis lateralibus 7 — 9, marginem petentibus, nenris 

 venisque supra parce, subtus manifeste prominentibus, dense reticulata. Flores ad nodos 

 ramorum annotinorum fasciculati vel breviter racemosi, racemi 5 — 5,5 cm long!, 2 — 5- 

 flori; rhachis inflorescentiae griseo-stellato-pubescens; flores 3 — 4 fasciculati; bracteae 

 obovatae, acutae, griseo-tomentosae, minutae, mox caducae, versus basin pedicelli in- 

 sertae; flores 2 — 2,5 cm longi, pedicello gracili, pendulo, 1,5 — 3 cm longo, hinc inde 

 pilis stellatis instructo; calyx cupuliformis , ca. 6,5 mm altus, extus griseo-velutino- 

 pilosus, tubus ovario adnatus, dentes 4, breves, distincti, trianguläres, utrinque pubes- 

 centes, apice acuti; corolla albida, segmenta 4 interdum 5, basi brevissime connata, tubo 

 ca. 1,5 mm longo, segmentis in aestivatione imbricatis, membranaceis, 2 — 3 cm longis, 

 1 cm latis, oblongis vel obovato-oblongis, apice obtusis, utrinque stellato-pubescentibus ; 

 stamina 8—16, plerumque 8 (ex Koehne), a petalis sublibera fere coroHae aequilonga, 

 1-seriata, inferne complanata, usque medium connata, parte libera plana, marginibus 

 pilis stellatis parce obsitis; Stylus apice excepto dense brevissime pilosus; ovarium 2—3- 

 loculare, maxima pro pai'te inferum, multiovulatum, ovulis superioribus ascendentibus, 

 inferioribus pendulis. Fructus oblongus vel suborbicularis compressus, calycis dentibus 



A. Engler, Das Pflanzenreich. IV. (Embryophyta siplionogatna) 241, 7 



