go TAKEDA—JAPANESE PRIMULAS. 
This species readily produces a hybrid with P. pulverulenta, a 
Chinese species. In Japan this plant is distributed over the 
central and northern parts of Hont6 and Yezo. I have not 
seen any specimen of the true P. japonica outside Japan. 
P. EXIMIA, Greene. Plate XXII. 
P. eximia, Greene, in Pittonia, iii (1897), p. 251; Pax, in Engl. 
Pflanzenreich, iv (1905), p. 106; Yabe et Yendo, in Téky6 
Bot. Mag. (1903), p. 229. 
It is highly interesting to find this Arctic species in Japan. 
It has been recorded from the Island of Shimushu, the northern- 
most of the Kuriles. The characteristics of this plant are the 
glabrous, lanceolate, and entire leaf, and the undivided corolla- 
lobes of purple colour. 
P. CUNEIFOLIA, Ledeb. Plate XXIIs. 
There are three varieties of this species found in Japan, and 
they were at first described as distinct species. The species is 
easily distinguished from all other Japanese Primulas by its 
fleshy leaf and large crimson flower, the corolla-lobes of which 
are deeply divided into divaricate segments. 
P. cuneifolia, Ledeb., a. typica, Makino, in Téky6 Bot. Mag. 
(1902), p. 140, excl. syn. P. saxifragaefolia, Lehm. 
Syn. :-— 
P. cunerfolia, Duby, in DC. Prodr., viii, p. 39. 
P. cuneifolia, «. Dubyi, Pax, in Engl. Pflanzenreich, iv 
(1905), p- 112. 
This is the typical form, and was first described by Ledebour 
nearly a century ago. The plant is, on the whole, smaller than 
the other forms, and the leaf has exclusively simple, large acute 
teeth on the margin, whereas in the other forms the dentation is 
often mixed with double teeth. 
This form is found in Japan only, in Yezo and the Kuriles. 
Outside Japan it is distributed in Eastern Siberia. 
P. cuneifolia, Ledeb., 8. hakusanensis, Makino, in Téky6é Bot. 
Mag. (1902), p. 141. Plate XXIIIa. 
Syn. :— 
P. hakusanensis, Franch., in Bull. Soc. Phil. Paris, 7 sér. x 
(1886), p. 144; Makino, in Tokyé Bot. Mag. (1897), p. 112; 
(1899), p. 83; Pax, in Engl. Pflanzenreich, iv (1905), p. I13. 
; a cuneifolia, Fr. et Sav., Enum. Pl. Japon., ii, p. 429, nec 
