MATERIALS FOE A FLORA OF FORMOSA. 35 



Pittosporum oligocarpum Hayata sp. nov. Rami graciles, 

 cinerascentes, ternatim ramulosi. Folia ad apicem ramnlcrum 

 approximate alterna vel verticillata, brève petiolata, oblonga vel 

 oblongo-lanceolata, apice subito acuminata, basi gradatim atte- 

 nuata, margine intégra vel obscure crenulata, costis supra im- 

 pressis subtus elevatis venis primariis lateralibus cire. 10, utraque 

 pagine obscure elevatis, venulis reticulatis inconspicuis, cliartacea, 

 vel chartaceo-coriacea, petiolis 5 ram.-lO mm. longis. Capsulas ad 

 axillas foliorum apicalium ramulorum solitaries, longe pedunculatae, 

 (pedunculis gracilibus 2J cm. longis, inclina to -pendulis,) globsae 

 7-10 mm. longse, apice longe mucronatce, basi abrupte attenuatae 

 ad stipitem 1 -2 mm. longum abeuntes, 2-3 valvatim déhiscentes, 

 4-5-sperm8e. Semina irregulariter angulata, 4 mm. longa, rubra. 



Hab. Taito (No. 5837) ; Biöritsu, ßunsuikei. 



Near Pittosporum idcmciflovum Hook, et Arn.; but differs from 

 it in having nearly solitary and axillary fruit. 



Caryophylleœ. 



Cerastitim Linn. 



Cerastium arisanense Hayata sp. nov. Herba humilis prost- 

 rata, ad nodos radicans, caulibus tenuibus parce hirsutis. 

 Folia opposita petiolata, minora, late rliomboidea, 5-6 mm. longa, 

 7 mm. lata, apice obtusa ot breve aristata, basi late truncata 

 l)rcvissime attenuata, supra margineque ciliata, subtus praeter 

 costas glabra, petiolis mm. longis complanatis. Flores cire. 

 mm. longi ad axillas foliorum solitarii, longe pedunculati, pedun- 

 culis cire. 5 cm. longis, hirsutis. Sepala 5, lanceolata, 7 mm. longa, 

 2 mm. lata, squamosa, trincrvia, apice acuminata, dorso basin 



