28 RHAMNE.E. 



petalisque persistentibus siiffulti. Seniina in fructu singulo 4 globosa plus minus 

 cornplanata 1^ mm. longa totiusque lata arillis meinbranaceis toto obtecta, 

 testa Crustacea minute reticulato-rugosa fuscenti ; albumen copiosum ; einbiyo 

 ignotus. 



HAD. Mt. Arisan, inter Karapiu et Suisharyo, leg. I. TANAKA, R. KANE- 

 HIRA et B. HAYATA, Aprili. 19 \ 4. 



Near Perrottetia alpestris var. pliilippinensis. The new species just des- 

 cribed is one of the plants which I found extremely difficult as to its proper 

 family. As the petals and sepals are very similar and arranged nearly in a 

 single whirle, it was veiy difficult task to determine the relative position of 

 the floral elements. The structure of the ovary and ovules was also very hard 

 to be stated exactly. I have made all these difficult characters clear, by studying 

 the commencement of the flower-development. The distribution of this genus 

 is very interesting. According to Th. LCESEXER (in EXGL. Bot. Jahrb. XXIV. 

 p. 200), there exist eleven species in all ; two in Mexico, two in Columbia, 

 one in Hawai, one in Australia, one in Moluklca, one in Java, Sumatra and 

 Borneo, one in the Philippines, one in China, and the last, the present one, in 

 Formosa. The Chinese plant is illustrated under the name of Hex racemosa 

 OLIVER in HOOK. Ic. PI. t. 1863. Our plant exactly accords with the descrip- 

 tion given by LCESENER in EXGL. et PRANTL. Nat. Pn.-farn., but less exactly 

 with that of the Genera Plantarum, as far as the generic characters of this 

 plant are concerned. 



Rhamneae. 

 Alphitonia REISSEK. 



Alphitonia excelsa REISSEK, ex EXDL. Gen. PI. p. 1098. 

 HAB. Hainan : leg. S. KOXISHI. 

 Named by Mr. E. D. MERRILL. 



Sctf/erctia BRONGN. 



Sageretia hamosa BRONG.; HOOK. f. Fl. Brit. Ind. I. p. 641; HEMSL. Ind. 

 Fl. Sin. I. p. 131. 



The species is recorded from Formosa. But, the occurrence of this species 

 is very doubtful ; so far, we have never seen the plant in the island. 



