Cornus. 



51 



Torr. Fl. New York I. (184 3) 2 88; C. A. Meyer in Mem. Acad. Petersb. 6. ser. VII. 2. 

 Sei. nat. V. (1845) 203 et in Ann. sc. nat. 3. ser. IV. (1845) 59; Walp. Repert. V. 

 (1845—1846) 932; Emerson, Mass. Trees (1846) 409; Parry, PI. Minn. (1852)613; 

 Curtiss, PI. N. Gar. 61; Gray, Manual (1848) 201; Coult. et Ev. in Bot. Gaz. XV. (1890) 

 90 ; Koehne, Dendrol. (1893) 4 35 et in Gartenfl. XLV. (1896) 2 85 et in Mitt. Deutsche 

 Dendrolog. Gesellsch. XII. (1903) 36. — C. altema Marsh. Arbust. amer. (1785) 35. — 

 C. plicata Tausch in Flora XXI. (1838) 733. — Svida alternifolia Small, Fl. S. E. 

 Un. States (1903) 853. — Frutex vel arbor 2,5— 8 m alta, ramis alternis teretibus 

 glabris brunneis. Folia alterna in summis ramulis saepius fasciculatim conferta, petiolo 

 2,5 — 5,5 cm longo supra complanato vel leviter canaliformi stipitata, membranacea vel 

 leviter chartacea, supra saturate viridia subtus glaucescentia usque albida, juveneula 

 pilis breviusculis appressis utrinque dense obteeta, adulta supra perfecte fere glabrata 



Fig. 1 3. Cornus alternifolia L. f. A Habitus. B Flos ante anthesin. C Flos. (Icon. origin.) 



subtus pilis brevibus appressis vel secus nervös principales laxe patentibus d= dense 

 praedita, ovato-elliptica basi subrotundata vel saepissime in petiolum constrieta apice 

 breviter acuminata, 5 — 10 cm longa et 3,5 — 6,5 cm lata, e nervo medio pinnatim 

 5( — 6)-nervia, nervis principalibus arcuatim adscendentibus supra leviter immersis dorso 

 prominulis, seeundariis subtus quam supra multo clarius conspieuis. Inflorescentia pedun- 

 culo 2 — 3 cm longo glabro stipitata cymoso-paniculata plana vel vix convexa, ramulis 

 saepissime pilis breviusculis patentibus densiuscule hirtellis interdum subglabris, pedi- 

 cellis 1,5 — 3,5 mm longis; ovarium ellipsoideum 1,2 5 — 1,5 mm longum dense appresse- 

 que sericeo-pilosum ; sepala minutissima laciniata vel interdum fere inconspicua, disco 

 multo minora; petala late ovata usque ovato-lingulata 2,5 — 4 mm longa, basi 1,75 — 

 2,25 mm lata; staminum filamenta petala manifeste superantia 4,5 mm longa, antherae 

 1.5 mm longae; discus conspieuus pulviniformis apice obtusus; Stylus cylindricus 1,75 — 

 2,2 5 mm longus glaber, stigmate truncato. Drupa saturate coerulea sphaeroidea ± 





