MATERIALS FOR A FLORA OF FORMOSA. 105 
mucronatis, 1 mm. longis, 15 mm. latis. Petala 5, rotundata, 
35 mm. longa totiusque lata, apice rotundato-truncata, prope 
basin subito cuspidato-obtusa, vel acuta, margine apice sub-emar- 
ginata vel non emarginata. Stamina cire. 15, filamentis basi 
leviter dilatata. Ovarium sub-inferius apice albo-tomentosum, 
2-loculare, stylis 2, toto longitudine connatis, vel apice leviter 
distinctis, basi hirsutis, stigmatibus oblique capitatis. Fructus 
elliptico-pyriformes, 6 mm. longi, 44 mm. lati, longe pedunculati, 
pedunculis 4 mm. longis. 
Has. Taihoku, leg. T. Maxrno, Nov. 1896. 
The present plant is included in P. variabilis by W. B. HEMSLEY 
in Ind. Fl. Sin. I. p. 263. While studying here at Kew, I 
have examined all specimens included under the same name by 
this authority, and found that the Formosan specimens are very 
distinct from any of the other forms of the species collected in 
continental China. I think, therefore, the present plant should be 
regarded as a species distinct from P. variabilis. It is near 
P. arguta, but differs in having more minutely toothed leaves. 
Prinsepia Rove. 
Prinsepia utilis Royvte; Hook. f. Fl. Brit. Ind. I. p. 323. 
Has. Ganzan, ad 9141 ped. alt., leg. S. Nagasawa, Oct. 1905, 
(No. 562); in monte Morrison, ad 8000 ped. alt., leg. T. Kawaxami 
et U. Mort, Oct. 1906, (No. 2025); in Montibus Centralibus, leg. 
T. Kawakami et U. Mort, ad 12000 ped. alt., Nov. 1906, (No. 1855). 
Distris. Temperate Himalayas. 
OzsseRV. Rami virides glabri spinosi, spinis alternis 15 cm. 
longis axillaribus solitariis. Folia viridia, alterna, petiolata, oblongo- 
lanceolata 44 cm. longa, 14 cm. lata, subintegra vel obscure sub- 
