310 ^^6 Philippine Journal of Science im 



to 6 mm long, crowned by the prominent styles and recurved 

 stigmas. 



Luzon, Province of Tayabas, Guinatacutan, Bur. Sci. 13169 Foxworthy 

 & Rarnos, March, 1911, on rocks along the river, altitude 75 to 100 meters, 

 the flowers white and greenish. 



A most characteristic species, recognizable by its small size and its 

 lanceolate, sharply acuminate leaves. The narrow leaves have doubtless 

 been developed to meet the exigencies of its habitat, for the plant undoubt- 

 edly grows in situations subject to overflow during heavy rains. It has 

 almost exactly the habit and appearance of Atalantia linearis (Blanco) 

 Merr., and Eugenia mimica Merr., which grow in similar habitats, and in 

 fact in making the preliminary identifications of the Guinatacutan collec- 

 tion, the specimens were referred to Atalantia linearis. 



Stenophylly, due to habitat, is not as highly developed in the Philippines 

 as in the neighboring Island of Borneo, and aside from the widely distrib- 

 uted Homonia riparla Lour., we have the endemic species Atalantia linearis 

 Merr., Eugenia mimica Merr., Buxus rivularis Merr., and Ficus rivularis 

 Merr., and doubtless others remain to be noted. The rather numerous 

 Bornean forms have been considered by Beccari.' 



BUXUS PACHYPHYLLA sp. nov. 



Arbor glabra ; f oliis crassissime coriaceis, nitidis, oblongis, 

 usque ad 11 cm longis, 3 ad 5.5 cm latis, basi acutis vel acumina- 

 tis, apice acute acuminatis, margine valde revolutis; capsulis 

 axillaribus, solitariis, breviter pedunculatis, ovoideis, circiter 1 

 cm longis. 



A glabrous tree, size not indicated. Branches terete, pale- 

 olivaceous, the branchlets slender, somewhat sulcate on two sides. 

 Leaves oblong, very thickly coriaceous, 9 to 11 cm long, 

 3 to 5.5 cm wide, narrowed below to the acute or somewhat 

 acuminate base and above to the sharply acuminate apex, the 

 margins strongly recurved, both surfaces shining, the lower 

 usually a little paler than the upper; lateral nerves slender, up 

 to 30 on each side of the midrib, irregular, sometimes rather 

 indistinct and confused with the secondary ones and the reticula- 

 tions; petioles 5 to 7 mm long. Peduncles solitary, axillary, in 

 fruit 5 mm long or less, with numerous, spreading bracteoles, 

 the lower ones smaller than the upper. Flowers not seen. 

 Capsules ovoid, about 1 cm long, solitary, smooth, somewhat 

 glaucous-purple when dry. 



Luzon, Province of Tayabas, Mount Cadig near Guinayangan, Bur. Sci. 

 20828 Escritor, March 9, 1913. 



Well characterized by its very thickly coriaceous leaves, and its solitary, 

 few, short-peduncled fruits. 



•Nelle Foreste di Borneo (1902) 524. 



