ROSACEAE. — PRUNUS 227 
Glandulae foliorum bractearumque dentibus insidentes minutissimae, 
interdum bractearum glandulae infimae tantum majores. (Distributio 
BübsecUbDhiE) 19 1. 3042 ee ee Ser. 1. APHANADENIUM. 
Glandulae foliorum atque imprimis bractearum crassae v. crassissimae, 
breviter conicae v. depresso-disciformes. (China.) 
Ser. 2. MACRADENIUM. 
Umbellae (1—)2-4-florae, flore infimo saepe paullo inferius inserto, breviter 
peduneulatae v.raro sessiles. (China.) Subsect.4. PHYLLOCERASUS. 
Bracteae membranaceae minimae, sub anthesi vel paullo posterius deciduae. 
Flores coaetanei v. praecoces. (China.) 
Subsect. 5. PSEUDOMAHALEB. 
Petala inciso-biloba v. manifeste emarginata. Umbellae sessiles v. breviter v. 
longiuscule pedunculatae flore infimo subremoto, floribus (1-)2-6.  (China.) 
Subsect. 6. LOBOPETALUM. 
Sepala cupula nunc brevi lata nune manifeste tubulosa breviora. Involucra 
sub anthesi nunc decidua nunc persistentia; bracteae minimae v. inclusae. 
Flore paoa uo. 55 ei Ser. 1. HETEROCALYX. 
Sepala cupula brevi lataque duplo longiora lanceolata (in speciebus nonnullis 
habitu huc pertinentibus vero ignota). Involucra (quoad nota) sub anthesi 
persistentia; bracteae herbaceae majusculae v. interdum absconditae. 
Flores coaetanei v. praecoces. . . <. . . os . . Ser. 2. CycLAMINIUM. 
Sect. 2. PSEUDOCERASUS.! 
Folia subtus glandulis punctata. (Terra Amurensis.) 
Subsect. 7. HYPADENIUM. 
Folia subtus eglandulosa. 
Involucra magna, circiter 1 cm. longa v. majora. Folia haud insigniter lobulato- 
v. inciso-duplicato-serrata. 
Pedicelli fructiferi haud v. apice tantum sensim incrassati. 
Cupula e basi acuta turbinato-tubulosa v. anguste tubulosa, sepala eupula 
sublongiora v. paullo, raro dimidio breviora. Flores coaetanei v. prae- 
coces (in P. parvifolia? vero dicunter autumnales). Foliorum dentes saepe 
acuminatissimae v. in setulam excurrentes. Drupae nigrae; putamen 
(quoad notum) laeve v. obsolete suleatum. (China, Korea, Japonia, 
aphaln)-. n r Codd qoo Subsect. 8. SARGENTIELLA. 
Cupula e basi obtusa campanulata v. cylindracea. Drupae quoad notae 
rubrae. 
Flores praecoces. Putamen (quoad notum) laeve v. obsolete sulcatum, 
(in P. pauciflora tantum retieulato-costatum). Cupula 5-9 mm. 
longa, sepala cupula dimidio circiter v. paullo breviora. Foliorum 
dentes majusculae, acutae v. PEPER He D t ^ ee 
Umbellae sessiles v. interdum pedunculo mm. longo ý 
(China, Japonia.) . . . . . m . . Subsect. 9. CONRADINIA. 
Flores coaetanei. Putamen aaa Het n a , a a um. Foli- 
orum dentes parvae v. minimae. ( , - T 
1 Here particularly the position of many species known only in fruiting speci- 
mens will need Seale by further investigation based on more complete 
material. 
2 The flowers of the specimens kindly sent me by Mr. Matsumura of Tokyo 
were collected in spring according to a note on the labels. 
