234 Bulletin Jard. Bot. Buitenzorg, Vol. IV. Livr. i. 



oblique ovale ad oblique globosum, c. 0.125 cm. longum; stylus inclusus, 

 elongatus, filiformis, cum stigmate conspicuo exserto segmenta perianthii 

 aequante compresso oblique cuneato flabellato apice irregulariter denticulato 

 c. 0.6 cm. longus. Syncarpium magnum, irregulariter depresse globosum, 

 plus minusve irregulariter lobatum, dense echinatum, echinis (perianthii 

 apicibus) inaequalibus conicis angulatis acutis c. 0.8 cm. longis, c. IS- 

 IS. 5 cm. diam., 12 cm. altum. Achenia oblique ovoideo-ovalia, c. 2.9 cm. 

 longa, 1.9 cm. diam., pericarpio molliter coriaceo marmorato, endocarpio 

 osseo Semen oblique ovoideum, c, 1.9 cm. longum, testa membranacea; 

 cotyledones crasse carnosae, inaequales, supra basin arcte applicato-incurvae, 

 subovales, apice abrupte contractae, obtusae, basi angustatae, radicula com- 

 pressa, lineari, c. 0.6 cm. longa,. 



Sumatra: Palembang, Banjoeasin, 20 m., on swampy land. (W. 

 Grashoff n. 798, November 1915, cf buds only; native name Koeloes). 



Sumatra's Oostkust : Poeloe Bengkalis, Tamansari, 5 m., in swampy 

 forest, (V. M. A. BEGUIN n. 316, September 1919, maie flowers; native name 

 Tengajoen). Soengei Missigit, 6 m., in swampy forest. (V. M. A. BEGUIN 

 n. 583, June 1920, maie flowers and ripe fruits, native name Tengajoen), 

 Sengoro, 4 m., in forest; a few trees. (V. M A, BEGUIN n. 536, December 

 1919, very young buds). 



Till now only two species of Gymnartocarpus hâve been described, 

 viz. G. venenosa (ZOLL). BOERL. from Java and Sumatra, and G. Woodii 

 Merr. from the Philippine Islands. The latter, however, seems to be only 

 imperfectiy known and the almost stérile spécimens in the Buitenzorg 

 Herbarium closely resemble G. venenosa. 



The new species found by Messrs. GRASHOFF and BEGUIN, collectors 

 of the Muséum for Economie Botany in Buitenzorg, is well characterized 

 by its much smaller obovate leathery leaves, three stamens with thickish 

 filaments connate below, longer $ inflorescences, with the anthocarps 

 much longer and thornlike. 



It appears from the notes of the collectors that Gymnartocarpus triandra 

 is a large tree, with the trunk 13—20 m. high and Î.6 — 2.2 m. in circum- 

 ference and buttresses 0,5—1.4 m. high. Bast 1—2.2 cm. thick, outside 

 brownish yellow, inside yellowish white, with white latex, which in the 

 open soon coagulâtes and turns light yellow. Crown dense, 15 — îO m. high, 

 branches slanting. Maie flowers scenting strongly of bran. 



The fruits are said to be edible. 



Description from herbarium and material preserved in alcohol and 

 formaline. 



Tab. 6. 

 Fig. L Ramulus florens '/i. - Fig. 2. Inflorescentia 2 Vi- 



