ALABA8TRA BOKNEENSIA. 239- 



species, of which nine were credited to Borneo. In our own collec- 

 tions of Bornean plants wo less than thirteen distinct species are 

 represented, some of the specimens manifestly pertaining to forms 

 described by Valeton, others representing characteristic and strongly 

 marked species that I cannot refer to any known forms of the genus. 

 In 1909 but about six species of the genus were known from the 

 Philippines, but the Philippine list to-day approximates twenty dis- 

 tinct forms, and current collections indicate that the list will be 

 considerably increased as botanical exploration of the Archipelago 

 progresses. It is not surprising, then, that a number of undescribed 

 forms should be found in our comparatively small collections of 

 Bornean plants, and it is confidently expected that a continued 

 botanical exploration of Borneo will yield many other species of 

 this characteristic genus. 



Timonius hosei, sp. nov. 



Arbor, ramulis et innorescentiis et foliis pubescentibus; 

 foliis oppositis, oblanceolatis ad oblongo oblanceolatis, petiol- 

 atis, usque ad 20 cm. longis, chartaceis ad subcoriaceis, apice 

 breviter acute acuminatis, basi gradatim angustatis, cuneatis, in 

 siccitate pallidis, utrinque praesertim ad costam nervosque bre- 

 viter pubescentibus; nervis utrinque 14 ad 16, prominentibus, 

 venis subparallelis ; stipulis ovato-lanceolatis, circiter 1.8 cm. 

 longis, acuminatis, extus pubescentibus, intus dense pallide ad- 

 presse-hirsutis ; inflorescentiis $ axillaribus, confertis, brevis- 

 sime pedunculatis, plerumque trichotomis ; floribus 5-meris 

 circiter 1.5 mm. longis. 



A tree, the branches terete, pale, glabrous, the branchlets 

 rather densely ferruginous-pubescent with short hairs. Leaves 

 opposite, chartaceous to subcoriaceous, oblanceolate to oblong- 

 oblanceolate, 16 to 20 cm. long, 5 to 8 cm. wide, the apex 

 shortly and acutely acuminate, gradually narrowed in the lower 

 one-half or two-thirds to the cuneate base, pale when dry, 

 slightly shining, of about the same color on both surfaces, the 

 upper surface densely brown-pubescent on the midrib and 

 lateral nerves with short hairs and with scattered ones on the 

 epidermis, the lower surface rather uniformly pubescent on the 

 midrib, nerves, and reticulations with similar but pale-brownish 

 hairs ; lateral nerves 14 to 16 on each side of the midrib, pro- 

 minent, slightly curved, anastomosing, the primary reticul- 

 ations distinct on the lower surface, parallel or subparallel ; 

 petioles densely pubescent, 1 to 1.4 cm. long; stipules ovate- 

 lanceolate, acuminate, about 1.8 cm. long, externally pubes- 

 cent, internally densely appressed-hirsute with pale hairs. 

 Staminate inflorescences axillary, dense, including the flowers 

 3 cm. long or less, rather uniformly and densely pubescent with 

 pale yellowish-brown hairs, sessile or very shortly peduncled, 

 usually trichotomous, the branches dichotomous or tricho- 



R. A. Soc, No. 77, 1917. 



