ALABASTEA BORNEENSIA. 205 



. A glabrous tree about 15 m. high, the ultimate branchlets 

 about 1 cm. in diameter, brownish, prominently rugose. 

 Leaves crowded at the apices of the branehlets, coriaceous, in 

 general oblong-oblanceolate, pale wiien dry, prominently shin- 

 ing on both surfaces, 20 to 30 cm. long, 6 to 11 cm. wide, apex 

 acute to somewhat rounded, narrowed below to the cuneate 

 base, margins somewhat revolute, entire; lateral nerves about 

 12 on each side of the midrib, impressed on the upper surface, 

 very prominent on the lower surface, curved, anastomosing, 

 the reticulations* lax ; petioles 4 to 5 cm. long, pale and striate 

 except the very much thickened and prominently rugose dark- 

 brown base. Spikes pendulous, up to 1 m. in length, the 

 rachis nearly 1 cm. in diameter, when dry, pale, shining, pro- 

 minently wrinkled. Flowers sessile, 6 to 7 cm. in diameter. 

 Calyx about 3 cm. long, the tube terete, dark-brown when dry, 

 1 cm. in diameter, about 1.5 cm. long, widened upward, the 

 lobes 4 or 5, lanceolate to ovate, coriaceous, somewhat spread- 

 ing, acute to somewhat acuminate, as long as the tube, 1 to 

 1.7 cm. wide, not at all imbricate, apparently irregularly 

 splitting from the closed bud. Petals 4, subcoriaceous, oblong- 

 obovate, 4 cm. long, 2 cm. wide, recurved, obtuse. Stamens 

 very numerous, united for the lower 5 mm., the free parts of 

 the filaments about 4 cm. long, yellowish-white.' Ovary 4- 

 celled; ovules 3 to 6 in each cell. The disk-like annulus at 

 the apex of the ovary inside the stamens is about 2 mm. high 

 and 7 mm. in diameter. Style slender, about 4 cm. long. 

 Fruits unknown. 



■ British Xorth Borneo, Sandakan, YiUamil 278, Decem- 

 ber.. 5, 1916, in open places, altitude 90 meters. The trunk is 

 10 cm. in diameter and the calyx, when fresh, is brownish-red. 



To this species I am disposed to refer a specimen from 

 Sarawak, Kuching, May 22, 1893, collector not indicated. 

 In this specimen, which is very imperfect, the leaves are round- 

 ed at the apex and up to 13 cm. in length. I have placed the 

 species in the section Buionica as even in flowers with the 

 petals not at all expanded the calyx-lobes are not at all im- 

 bricate, and the lobes all present more or less torn margins, 

 indicating that the calyx in bud was entirely closed, in anthesis 

 irregularly splitting into 4 or 5 lobes. From Barringtonia 

 macrostacliya, Ivurz, of the section Straradium, it is at once 

 distinguished by its much larger buds and flowers. 



Barringtonia dolichophylla, sp. nov. 



Arbor glabra ; folds oblanceolatis, crasse coriaceis, usque 

 ad 75 cm. longis, in siccitate pallidis, utrinque nitidis, integris, 

 basi gradatim angustatis, costa utrinque valcle incrassata, nervis 

 utrinque circiter 40, prominentibus ; spicis ut videtur elongatis ; 

 floribus 4-meris, circiter 7 cm. diametro; calijcis 3.5 em. longis, 



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



