ROSACEAE. — PRUNUS 73 
barbata atque plerumque manifeste pallidiora quam supra, 
nervis venisque primariis subtus prominulis, reticulo 
plerumque pallido rarissime intensius colorato. P. pubigera. 
Calycis basis sub fructu persistens intus glaberrima.  Petioli 
eglandulosi. Folia subtus glaberrima, pallida albicantia, costa 
-nervis ochraceis, retieulo multo intensius colorato distinc- 
BRING CT 4953045 04 AE IUNIO Vous P. bico 
Folia tota pagina inferiore laxe pilosa pallida, reticulo pallido 
demum prominulo; petala staminibus triente breviora. 
P. velutina. 
Stylus longus. — 5:24 SR ON OEUS 840 Ser. 3. GRAYOPADUS. 
P. Grayana. 
tt Pedunculi nudi; bracteae persistentes; stylus longus. 
Ser. 4. MAACKIOPADUS. 
A specie altera! hujus sectionis folis subtus eglandulosis, racemis 
4—7 em. longis laxifloris, sepalis fimbriatis stylo glabro differt. 
P. laxiflora. 
XX. SPECIERUM DISTRIBUTIO SYSTEMATICA 
Sect. 1. CALYCOPADUS Koehne in Abhand. Bot. Ver. Brandenburg, LII. 107 
(1910). 
Calyx persistens. 
gem 1. CAPOLLINIA Koehne in Abhand. Bot. Ver. Brandenburg, LII. 106 
910). 
Sect. Eupadus Koehne, Deutsche Dendr. 303 (pro parte) (1893). 
„Species sempervirentes vel foliis deciduis, venarum retieulo saepe indole rhom- 
bica. Pedunculi typice foliati; bracteae caducae. Calyx fructifer persistens. 
Stamina circ. 15-25 (an semper?); stylus brevis. 
Species omnes americanae: P. salicifolia Kunth (Bolivia, Peru, Ecuador, Co- 
lumbia, an Mexico?), P. Capollin (De Candolle) Koehne (Mexico), P. serotina 
Ehrhart cum var. neomontana Small (Amer. bor. ut sequentes), P. ezimia Small, 
P. alabamensis Mohr, P. Cuthbertii Small, P. australis Beadle. 
bae 2. CALYCINIA Koehne in Abhand. Bot. Ver. Brandenburg, LII. 107 
910). 
Folia decidua, venarum reticulo isodiametrico, subtus in dentibus infimis bi- 
glandulosa. Pedunculi nudi; bracteae caducae. Calyx persistens; stamina 
10(-12); stylus brevis. 
Species omnes asiaticae: P. undulata Roemer (inde a Bengalia or. usque ad 
Nepal), P. venosa Koehne (China), P. stellipila Koehne (China), P. perulata Koehne 
(China), P. Buergeriana Miquel (China, Japonia). 
! Prunus Maackii Ruprecht in Bull. Acad. Sci. St. Pétersbourg, XV. 361 (1857). 
Laurocerasus Maackii C. K. Schneider, Ill. Handb. Laubholzk. Y. 645, fig. 352 
h-i (1906). 
Known from Amurland and Mandshuria, but not yet reported from other 
regions of the Chinese Empire. It differs from P. laziflora in its leaves being glan- 
dular punctate beneath, in the dense racemes, 2-3 cm. long, the bracts 1-2 mm. 
long, the scarcely fimbriate sepals and in the style being loosely villose below the 
middle. 
