Floristik, Geographie, Systematik etc. 357 



Makino, Stachys humilis Matsum. et Kudo, Ajuga yesoensisMüXsnm..). 

 The diagnoses of the two genera and oi Ajugoides humilis are given 

 in english language. Jongmans. 



Nakai, T., Philadelphus ] apono -Cor ea.na.e. (Botanical Magazine. 

 Tokyo. XXIX. p. 63-67. 1915.) 



This paper contains an analytical key to the species of Phila- 

 delphus occurring in Japan and Corea, the S5'-nonymy and distri- 

 bution of the known species with description of two new species. 



P. shikokianus, an endemic species of Shikoku, is related to 

 P. Schrenckii, P. tenuifolius and P. Satsumi. P. lasiogynus is an en- 

 demic species of middle Corea and Stands near P. Schrenckii. 



Jongmans. 



Nakai, T., Praecursores ad Floram sylvaticam Korea- 

 na m. (Botanical Magazine. Tokyo. XXIX. p.25— 30, 35— 47, 54-62, 

 71—82, 133—147. 1915.) 



The different parts contain enumerations of the trees belonging 

 to several families, which occur in Korea. The new species and 

 varieties, and some of the older ones, formerly created by the 

 same author, are described, the others not, but synonymy and 

 distribution is given in all cases. 



New species and varieties or new combinations: Aceraceae: 

 Acer no new species; Betulaceae: Corylus hallaisanensis ; C. Siebol- 

 diana El. var. typica and var. mitis (Max.), (C rostrata var. mitis 

 Max.); Ostrya, no new names; Carpinus eximia, near C. Tschonoskii; 

 Betula, with several new subgenera, B. Saitoana, B. collina; Alnus: 

 A. paniculata, near A. japonica and perhaps also A. maritima, A. 

 japonica S. et Z. var. reginosa, A. sibirica var. hirsuta {A. hirsuta 

 Turcz.) 



Fagaceae: Fagus and Castanea no new species; Lithocarpus 

 cuspidata (Thunb.) Nakai nov. comb. {Quercus cuspidata Thunb., 

 Pasania cuspidata Oerst., P. cuspidata « Thunbergii Mak.); L. Sie- 

 boldii (Mak.) Nakai nov. comb. {Pasania Sieboldii Mak., P. cuspidata 

 ß Sieboldii Melk., P. cuspidata Prantl. non Oerst.). Quercus. The sub- 

 genus Cerris is divided into 2 sections: Stellatae (Q. serrata Thunb.) 

 and Pilosae (C. acutissima Carr.) and a fourth subgenus: Cyclotheca 

 is proposed for Q. acuta Thunb. A number of formerly described 

 species are united with Q. mongolica Fischer This species contains 

 three varieties: «. typica with ior vcidc glaberrima and forma tomentosa; 

 ß. liaotungensis {Q. liaotungensis Koidz.) with forma glabra (Q. fune- 

 bris var. glabra Levl.), forma funebris (Q. funebris Levl.) and undu- 

 latifolia (Q. undulatifolia L^vl.); /. manshurica {Q. grosseserrata Kom. 

 non Miq., Q. crispula var. manshurica Koidz.) New species or 

 combinations: Q. major (Seem.) Nakai (jQ. glandulifera var. major 

 Seem. in litt.), Q. donariutn, near Q. glandulifera. 



Spiraeaceae with a key to the determination of the genera Exo- 

 chorda and Sorbaria: no new names. Spiraea with analytical key to 

 the sections of the subgenus Euspiraea New names: 5. silvestris 

 near 5. longigemma and S. angulata: S. microgyna (S. Frischiania 

 Nakai, non Sehn.). Neillia, with description of N. üekii Nakai, 

 1912; Stephanandra and Opulaster no new names. 



Drupaceae : Prunus with analytical key to the subgenera. Pseu- 

 dopadus new subg. {Prunus Sect. 5 Padus Maxim, p. p.; Laurocerasus 



