MATERIALS FOE A FLORA OF FORMOSA. 171 



Hab. Taitö : Daironsan, leg. T. Kawakami ot U. Mori, (No. 2184). 



The present plant was first identified with Plcris formosa D. Don 

 by Prof. J. Matsumura. I was also of the same opinion as the 

 Professor regarding the reference of the plant, as the figures given 

 in Wight, Ic PI. t. 1200 quite agree with it. Since coming to 

 Kew, when 1 have examined the type of P. formosa D. Dox, I have, 

 however, found that the type does not agree with the Formosan 

 plant. The inflorescence of the latter spreads less, the flowers 

 are smaller, the leaves are obovately spathulate, less acute at the 

 apex, more obtusely serrate on the margin, and very faintly reti- 

 culated on the surface. There are at Kew some specimens irom conti- 

 nental China, referred to P. formosa D. Don. They are also difTerent 

 from my plant. 



JRJiododendron Linn. 



Rhododendron Kawakamii Hayata sp. nov. Frutex, ramis gra- 

 cihbus cortice cinerascente vestitis, ramulis apice rubescentibus 

 rugosis. Folia breve petiolata, obovata, 3 J cm. longa, 17 mm. lata, 

 apice rotundata, basi acuta vel cuneata, utrinque glabra, coriacea, 

 crassiuscula, margine leviter recurva vel revoluta, supra viridia glabra 

 nitida costis venisque impressis, subtus costis prominente elevatis, 

 venis leviter elevatis vel inconspicuis, allio-flavescentia minute 

 atropunctata, venis primariis mediocribus ad costas angulo ()0 

 egressis, basilaribus angulo 40"^ egressis, utrinque latere 4. Alabastra 

 ovoidea ar-uta, 1.') mm. longa, 8 mm. lata. Flores ad apicem 

 ramoriim terminales, umbellati, umbelhs basi bracteatis, bracteis 

 oc -scriatis, exterioribus brevibus, concavis rotundatis 8 mm. longis 

 7 mill, latis, medio sursum ])unctatis margine ciliolatis, mediocribus 

 iungissimis 1 1' mm. longis, spathulatis, intimis linearibus 8 mm. 



