36 



near the margins; petioles 10 to 15 cm. long, densely pubescent. Inflores- 

 cence axillary, densely pubescent. Male flowers whitish, numerous, panicu- 

 late, the panicles 10 to 20 cm. long, the longer branches about 5 cm. long. 

 Calyx 2 mm. long, obovoid, truncate, or very obscurely 5-toothed, densely 

 grayish pubescent, the pedicel 1 mm. long or less. Stamens about 10, the 

 staminal column somewhat exserted. Female flowers in narrow few flowered 

 panicles 8 to 14 cm. long, the branches few flowered, 1 to 2 cm. long. Calyx 

 similar to that of the male flower, but somewhat larger. Ovary 4-celled, 

 each cell with one ovule; styles connate, forming a 4-lobed disk. Fruit 

 ovoid, entire, glabrous or nearly so, 1 cm. long, crowned by the persistent 

 stigmas, the calyx also persistent, the epicarp somewhat fleshy, inclosing 

 two indehiscent cocci about 7 mm. long. 



Specimens examined, all from Luzon : Province of Bataan, Mount Mari- 

 veles (716, 1669, 1672 Borden), May and August, 1904; Province of Rizal, 

 Bosoboso (2700 Merrill), June, 1903 (female flowers) ; Province of Taya- 

 bas, Pagbilao (2603 Merrill), April, 1903. T., Indang, Callucoy. 



No species of this genus has previously been reported from tlie Philip- 

 pines, the species here proposed being apparently related to Endospermum 

 chinense Benth., from Hongkong, E. iorneense Muell. Arg., from Borneo and 

 E. formicarium Becc, from New Guinea, but is apparently sufficiently 

 distinct from all these species. A tree growing in the lower hill forests, 

 with exceedingly variable leaves, strongly peltate and deeply cordate leaves 

 being frequently found on the same branchlet. 



Macaranga hispida (Blume.) Muell. Arg. in DC. Prodr. 15=:990. 1862. 

 Mappa hispida Blume. 

 This species, previously known only from the Moluccas, is apparently 

 v/ell represented by No. 202 INIcGregor, Baco River, Mindoro, April, 1905 

 (male flowers), and No. 316 Aliern, Surigao, Mindanao, 1901 (fruit). 



ACERACE^. 



Acer philippinum, sp. nov. % Integrifolia. 



A tree 8 to 12 m. high with simple, entire, acuminate, glabrous leaves 

 which are glaucous beneath, and short axillary, glabrous racemes, the 

 stamens long exserted. Branches glabrous, dark reddish brown, nearly 

 black when dry. Leaves elliptical ovate, subcoriaceous, dark above when 

 dry, very glavicous beneath, 7 to 11 em. long, 3 to 5.5 cm. wide, the apex 

 slender acuminate, the acumen blunt, the base cuneate, 3-nerved; lateral 

 nerves 5 to 6 on each side of the midrib, irregular, ascending, prominent, 

 the reticulations dense ; petioles slender, glabrous, 2 to 5 em. long. Racemes 

 axillary, glabrous, 1 to 2 cm. long, contemporary with the leaves, with 

 4 to 6 imbricated, subdistichous bracts at the base. Male flowers greenish 

 white, 3 to 4 mm. long including the stamens. Sepals 5, linear or oblong 

 linear, 1.5 to 2 mm. long. Petals similar to and equaling the sepals. 

 Stamens 8, the filaments slender, glabrous, 3 to 4 mm. long; anthers 0.7 

 mm. long. Ovary 2-lobed, densely pilose; style biijartite, the lobes divari- 

 cate, recurved. Fruit unknown. 



