20 RUTACE^E. 



ad axillas spinescentibus. spinis 5 mm. longis, ramulis fertilibus inermibus. 

 Folia tenuiter coriacea oblonga vel obovata fi-7 cm. louga 3^-4 cm. lata apice 

 obtusa vel obtusissima interdum retusa basi cuneata margine obscure crenulata, 

 petiolis 1 cm. longis angustissime alatis, alis mm. latis, vel baud alatis. 

 Flores albi axillares solitarii, pedicellis 4 mm. longis. Calyx campanulato- 

 cupuliforrnis 4-5 mm. in diametro 5-dentatus, dentibus triangularibus acutis 

 phis minus navescentibus. Petala 5 lineari-oblonga 1J cm. longa 5 mm. lata 

 apice triangulari-acuta. Stamina circ. 20 toto connata. Ovarium viride ; stylo 

 columnar!, stigmate globoso-obconico. Fructus subterminalis subsolitarius vel 

 axillaris giobosus 2^ cm. longus totiusque latus, vel depresso- 

 globosus circ. 6-locularis, medulla cava ; pericarpio tenui 

 fere stricto, carnibus valde aciclis, embryonibus viridibus. 



Ncoi. JAP. Saiscikitsu ^^fe^p, Shikikitsu JJtj ^ %&. 

 GekkltxH ^ %), Tokinkan Jjtf^lH"- 



HAL. Shintiku, cult.; Loo-choo : Yonakuni, sponte Fig. y ; citrus miiia 

 crescens, leg. Y. SHIMADA, Oct. 1917. BLAXCO. 



NOTE : Colour of the skin is like that of No. 100 No. 151 in KLIN. 

 et VAL. Cod. des Coul. 



There are two forms. They are : 



Form. Shikikitsu : Fruits depressingly globose 3 cm. long, 3.7 cm. 

 broad. 7-8-celled, core hollow, embryo greenish. 



HAI;. Shinpo, cult. 



Form. Gekkitsu: Flowers smaller than the preceding form. Fruits globose 

 less depressed than the preceding form, 3 cm. long, 3.5 cm. broad, core hollow, 

 nearly 8-celled, embryo greenish. 



HAD. Shintiku. Shinpo, cult.; Gaogan, sponte crescens. 



Citrus nobilis LOUR. var. Ponki HAYATA n.v. (Fig. 10). Frutex 2i m. 

 altus 3 m. latus, ramis divaricatis gracilibus subscandentibus, lateralibus in- 

 clinatis. Folia oblonga 7cin. longa 3 cm. lata apice acuta vel acuminata ad 

 sumnium obtusa et retusa l>asi acuta vel cuneata margine crenata tenuiter 

 coriacea giabra, petiolis 7-10 cm. longis angustissime alatis vel haud alatis. 

 Flores subterminales gemiriati vel solitarii stipitibus 5 mm. longis glabris pedicel- 

 lati. Calyx subplanns glaber 5-lobatus, lobis late triangularibus 2J mm. latis 1 J 



