26 



VIOLACE2E. 



Folia omnia radicalia loiige petiolata hirsuta, lamina cordata vel oblongo- 

 cordata 2-3 era. longa, 23 mm. lata, membranacea, utraque pagine parce 

 pubesceuti, subtus ad venas pubescenti, (margine crenulata ad sinus obscure 

 mucronata), apice acuta, obtusa, basi profunde cordata, petiolis 5 cm. longis 

 hirsutis basi utrinque stipulis instructis, stipulis oblique ovatis 8 mm. longis, 

 basi petioli adnatis margine fimbriatis 1-costatis. Scapi 5-10 cm. longi, 

 parcissime hirsuti, infra medium bracteis 2 instructi, bracteis linearibus 7 

 mm. longis basi dilatatis. Sepala leviter insequalia, lanceolato-ovata, extus 

 hirsuta, intus glabra, ultra basin producta. Petala insaqualia, 2 superiora 

 obovata apice rotundata basi acuminata 13 mm. longa 7|- mm. lata, lateralia 

 obliqua obovato-rectangularia 13 mm. longa 6 mm. lata apice rotundata basi 

 subunguiculata versus basin intus glanduloso-hirsuta (pilis apice globuliferis), 

 inferius brevissimum 10 mm. longum 4 mm. latum rectangulare apice truncatum 

 oblique emarginatum basi brevissime calcaratum (calcari 2 mm. longo totiusque 

 lato) cceruleum, altra albicantia. 



HAB. Arisan : Taroyen, leg. B. HAYATA et S. SASAKI, Jan. 20, 1912. 



Viola hypoleuca HAYATA sp. nov. 

 (Fig. 11.) Rhizoma erecto-ascendens. Folia 

 omnia radicalia vel rarius caulina, longe 

 petiolata, lamina cordata apice obtusa vel 

 acuta basi auriculato-cordata vel cordata 3 

 cm. longa 2 cm. lata, (sinui basilari 4 mm. 

 lato), ab insertione petioli usque ad lobos 

 basilares 1 cm. longa, margine denticulato- 

 crenulata supra prope sinus fasciculis 

 pilorum instmcta, cseterum glabra, subtus 

 omnino glabra pallido-albicanti crassiuscula, 

 venis supra elevatis subtus planis distinctis, 



petiolis 9 cm. longis glabris, stipulis rubes- 

 Viola hypoleuca HAYATA. 1, a leaf ; 



2, stipules seen from back ; 3, the centibus ovatis vel linearibus basi petiolorum 



same, seen from side ; 4, a flower. Fig. ^g^fa 4 mm> longis ma rgine Valde fimbria- 



1 and 4, natural size, fig. 2 and 3, 



magnified. tis. Scapi 10-15 cm. longi, basi squamis 



