214 Materials for a Flora of the Malayan Peninsula. 



puberulous when young, speedily glabrous. Flowers 4-to S-merous, 

 "12 to "2 in. in diam., pedicellate. Petals valvate. Fruit solitary, sub- 

 globular, 'S in. in diam., pitted, glabrous. Seed sub-globose. Hook. fil. 

 Fl. Br. Ind. I, 492. Z. undulatum, Wall. Cat, 1208. Z. lucidum, Wall. 

 Cat. ]212. Toddalia mitis, Miq. MSS. Limonia leptostachya, Jack MSS. 

 Wall. Cat. (without name) 7472 and 74G9. 



Singapore : Wallicli. Andaman Islands, King's collectors. Dis- 

 TEIB. : British India, Sumatra. 



2. Zanthoxylum mtriacanthum. Wall. Cat. 1214. A glabrous tree 

 40 feet high, all parts except the petioles armed with short straight 

 prickles. Leaves 1 to 1"5 feet long ; leaflets 4 to 9 pairs, coriaceous, 

 oblong-lanceolate, acuminate, entire or very obscarely and minutely 

 crenate ; main nerves about 8 pairs, spreading, not prominent even when 

 dry ; length 3 to 4 in., breadth 125 to 1"5 in., petiolule 1 to '2 in. 

 Cymes terminal, peduncalate, spreading, 6 to 8 in. in diam. ; peduncle 

 armed, 5 or 6 in. long ; branches long, sub-opposite or alternate. Floivers 

 •2 in. in diam., sub-sessile, 5-merous. Calyx with a few small bracts 

 at the base. Ovaries 3. Rife fruit compressed, "12 in. in diam., apiculate. 

 Seed compressed. Hook. fil. PI Br. Ind. I, 496. Z. longifoUuni, Wall. 

 Cat. 7315. 



Penang : Porter, Curtis No. 1076. Malacca; Maingay (Kew Dis- 

 trib.) No. 279. 



There are in Scortechini's Herbarium some scraps of a Zanthoxylum 

 which appears to be Z. glandulosum, Teysm. and Binn, ; but without 

 better specimens I hesitate to include that species here. 



5. AcRONYCHiA, Forst. 



Trees, with opposite or alternate, 1-rarely 3-foliolate leaves ; leaflets 

 entire. Flowers polygamous, small or moderately sized, yellow, in 

 pedunculate, terminal, or axillary corymbs. Petals 4, valvate, spreading, 

 revolute. Stamens 8, inserted under a thick, 8-angled, tomentose disc ; 

 filaments subulate, the alternate longer. Ovary inserted in the hollowed 

 apex of the disc, tomentose, 4-celled. Style terminal ; stigma 4- 

 grooved; ovules 2 in each cell, superposed. Fruit a 4-celled drupe, or 

 4-valved loculicidal capsule. Seeds with black testa and copious albumen ; 

 embryo straight ; cotyledons flat, oblong. Distrib. About 15 species : 

 all tropical Asiatic or Australasian. 



Flowers "35 to "75 in. in diam., linear in bud, 



filaments villous, inflorescence cymose ... 1. A. laurifoHa. 



Flowers *15 in. in diam., globular in bud, 



filaments glabrous, inflorescence racemose ... 2. A. Porteri. 



1. AcRONYCHiA LADRIPOLIA, Blume Bijdr. 245. A small tree or 



456 



