1920] REHDER, NEW SPECIES, VARIETIES AND COMBINATIONS 59 



and closely serrate leaves and in the more upright and compact habit. 

 There are several distinct forms in cultivation. 



C. superba f . alba, comb. nov. — Cydonia Maulei var. alba Froebel apud 

 Olbrich in Gartenw. iv. 270 (1900). — Chaenomeles Maulei alba Froebel 

 apud Zabel in Beissner, Schelle & Zabel, Handb. Laubholz.-Ben. 182 (1903). 

 A form with white flowers. 



C. superba f. rosea, comb, nov, — Cydonia Maulei var. grandiflora 

 rosea Froebel apud Olbrich, 1. c. — Chaenomeles Maulei grandiflora rosea 

 Froebel apud Zabel, 1. c. — A form with light rose-colored flowers. 



C- superba f. perfecta, comb. nov. — Cydonia Maulei grandiflora per- 



feda 



grandifl 



feda Froebel apud Zabel, 1. c. — A form with larger and broader leaves and 

 with scarlet flowers with sometimes 6-8 petals- 



In the genus Chaenomeles I am not able to distinguish more than three 

 well marked species: C. sinensis Koehne belonging to the section Pseudo- 

 cydonia Schneider later considered a distinct genus by its author, and C, 

 japonica Lindley and 0. lagenaria of the section Euchaenomeles; the former 

 Japanese and the latter Chinese. The following recently proposed species 

 based on cultivated plants are apparently all forms of C lagenaria : C, 

 angustifoUa Koidzumi in Jour. Coll. Sci. Tokyo, xxiv. art. 2, 97 (1913); 

 C. eugenioides Koidzumi in Tokyo Bot. Mag. xxix. 160 (1915); C. tri- 

 chogyna Nakai in Tokyo Bot. Mag. xxx. 23 (1916); Fl. Sylv. Kor. vi. 42, 

 t. 15 (1916); C. cardinalis (Carr.) Nakai in Tokyo Bot. Mag. xxxii. 145 

 (1918) and C. ehurnea (Carr.) Nakai, 1. c. They may be distinct enough 

 to be ranked as varieties or forms, but as I have seen neither specimens nor 

 plants of any of them I am not able to make a definite statement regarding 

 their systematic standing. 



Pyrus L. 



Pyrus ussuriensis Maxim 



/ 



Koidzumi in Tokyo Bot. Mag. xxix. 158 (1915), non Hooker f. — P- 

 rujojerruginea Koidzumi, 1. c. 311 (1915). — P. aromatica Kikuchi & Nakai 

 in Tokyo Bot. Mag. xxxiii. 33 (1918). — P. hondoensis Kikuchi & Nakai 



1. c. 34 (1918), 



Hondo. Mountainous parts near Tonomachi, Kamiheigun, Iwate pref.. May 20, 

 1918, iv, Yamagishi; same locality, same date, K. Kikuchi; mt. near Aidoqiura, 

 Iwiikigun, Fukushima pref., August 22, 1918, S. Akiyama; Ajara Mt. near Kura- 

 tatemura, Minamitsugarugun, Aomori pref., August 30, 1918, A, Kikuchi; about 

 three miles from Yamagatamura, Minamitsugarugun, Aomori pref., August 22, 1914, 



A. Kikuchi; Fujisan, above Subashiri, alt. 1167 m., June 1918, E, IL Wilson (No. 

 10375 ; tree 5 m.) ; Soihimura, Chiisagatagun, Naganoken, May 23, 1918, A, Kikuchi; 

 Kogoyama, prov. Kai, and Yamanaka, prov. Kai, T, Komiyama. 



This variety differs from the type chiefly in the more elongate, ovate 

 to ovate-oblong leaves with closer and finer, more appressed and less aris- 

 tate serration, in the longer pedicels of flowers and fruits and in the often 



present brown floccose tomentum of the young branchlets and leaves and 



