116 XXV. RUTACE^E [Acronychia 



- 6. ACRONYCHIA Forst. ; Fl. Brit. Ind. i. 498. 



Species 17, tropical Asia, China, Japan, Australia, and Polynesia. 



A. laurifolia, Blume. — Syn. A. pedunculata, Miq. ; Bedd. Fl. Sylv. 

 Manual t. vi. f. 4. ; Cyminosma pedunculata, DC. ; Wight 111. t. 65 (fl. 

 figured as o-merous). 



A large evergreen shrub or moderate-sized tree, very variable. Leaves 

 opposite, glabrous, 1-foliolate, quite entire. Fl. polygamous, 4-merous, white 

 or yellowish green, fragrant, in axillary pedunculate trichotomous cymes. 

 Petals linear, more or less villous within. Stamens 8, filaments subulate, 

 hairy at base, inserted outside a thick 8-grooved tomentose disk, those 

 alternating with petals longer. Ovary tomentose 4-celled, ovules 2 in each cell, 

 superposed. Pruit globose, often grooved at top, \-\ in. diam., 3-5-seeded. 

 Albumen copious, cotyledons oblong, flat. 



Eastern Dun, rare (Kanjilal F. FL, 50). Sikkim to 4,000 ft., Assam, Chittagong, 

 Pegu, Tenasserim, Andamans. Western Ghats, from North Kanara southwards, 

 Palni and Anamalai hills. Fl. June-Deeernber. Ceylon, Malay Peninsula and 

 Archipelago. Coehinchina. 



7. SKIMMIA, Tlnmb. ; PL Brit. Ind. i. 499. 

 Species 3, Himalaya, China, and Japan. 



S. Laureola, Sieb. and Zucc. : Brandis P. PI. 50. — Syn. Limonia Laureola, 

 Wall. PI. As. Par. t. 245. Vern.' Ner, Nehar, Gurlpatd, N.W. Him. ; Patrang, 

 Kunawar ; Chumlani, Nep. 



A gregarious, evergreen, wholly glabrous, strongly aromatic shrub, small in 

 the X.W., often a small tree in Sikkim, wood white, close-grained. L. alter- 

 nate, simple, quite entire, midrib prominent. PL bright yellow (greenish-yellow 

 or white in Sikkim), pentamerous, polygamous, in short crowded terminal 

 panicles. Stamens 5, alternating with petals. Fr. ellipsoid, red (black in 

 Sikkim), A-J in. long, fleshy, with 1-3 cartilaginous 1-seeded kernels. Albu- 

 men fleshy, cotyledons flat. 



Himalaya, from the Indus eastward, 5,000-11,000 ft. Fl. April, May. Fr. Oct., Nov. 

 Afghanistan. The Japanese species, S. japonica, Thuiib., united with this in Engler u. 

 Prantl iii. 4. 181, has 4-merous flowers. 



8. ZANTHOXYLUM, Linn.; PL Brit. Ind. i. 492. {Xanthoxylum 

 and Fagara, Engler u. Prantl iii. 4. 115.) 



Shrubs or trees, nearly always armed, prickles on stems and branches 

 generally on a corky conical base. L. alternate, 3-foliolate or imparipinnate. 

 PL small, generally unisexual, and 4-5-merous. Either {Fagara) with sepals 

 and petals, the former smaller, or (Zanthoxylum) a perigonium of 5-8 leaves. 

 Stamens in all cases alternate with petals or perigonium leaves. Ovary 

 of 1-5 distinct oblique 1-celled carpels, styles sometimes connate at the apex. 

 Pipe carpels 1-5, globose, generally coriaceous, dehiscing ventrally. Seeds 

 shining, blue or black. Embryo in a fleshy albumen, radicle short, cotyledons 

 flat. Species 140 in tropical and subtropical regions . 



A. Common petiole winged, perigonium of 5-8 leaves. Leaves imparipin- 

 nate. 



1. Z. alatum, Roxb. ; Brandis P. PL 47. Tern. Tezbal, Hind.; Timbar, 

 Tim.ru, Bashahr, Jaunsar ; Timur, Nep. 



A shrub, at times a small tree, almost entirely glabrous, wood white, close- 

 grained, prickles shining, strong, broad and flat on branchlets petioles and 



