CANTHIUM DIDYMUM. (Nat. ord. Rubiaceje.) 



OANTHIUM. Lam.— GEN. CHAR. Calyx-limb short more or less toothed, eorol-tube short or cylindrical, lobes 4-5 valvate in the bud, 

 anthers exserted or rarely included in the tube, ovary 2 celled with 1 ovule in each cell laterally attached near or at the top, style exserted with a thick 

 ovoid or mitre-shaped entire or 2-lobed stigma, fruit a globular compressed or didymous drupe, with 1 or 2 one-seeded pyrenes. Trees or shrubs unarmed 

 or with axillary thorns, stipules interpetiolar pointed with a broad base, flowers in axillary cymes or clusters. 



^ANTHIUM DIDYMUM. (Gsertn.) A small or middling sized tree or sometimes only a shrub, unarmed, bark smooth, 

 young branches 4 sided, leaves oval ovute elliptic or lanceolate, more or less acuminate, very coriaceous, quite glabrous on both sides 

 and very shining above furnished with smooth hollow glands in the axils of the veins beneath, variable in size but generally about 3-5 

 inches long by l£-2 broad, petioles 4-5 lines long, cymes axillary peduucled or congested into a single short thick peduncle scarcely as 

 long as the petiole and bearing numerous slender pedicels from its dilated apex, flowers white fragrant 5-merous, calyx teeth pointed 

 or rounded often somewhat inconspicuous and deciduous, minutely ciliate, corol-tube hairy within at the apex, anthers on conspicuous 

 filaments which are attached to near the centre of the back of the anther, style much exserted, stigma mitre-shaped and 2-lobed at the 

 apex, drupe when ripe compressed and somewhat didymous broadly obovate and slightly emarginate. Gcertn.fr. 3 p. 94. t. 196 ; — WA. 

 Prod, p. 4.25. C. cymosum, Pers. C. umbellatum, Wight Icones tab. 1034. Psydrax dicoccos, Gcertn. Webera cymosa, Willd. Sp. p. 1224. 

 Eondeletia cymosa, Poir. Cupea cymosa, DC. 



This very handsome tree with deep green foliage, is most abundant on most of the mountains in this presidency, particularly so on all the 

 hills in the Salem district ; it is called Nulla bo.hu both in Tamil and Teligu, Ursool on the Bombay ghats, and Tolan in the Ooria country ; it is 

 also vary common in Ceylon, where it is called Poruwa. The variety here figured was considered by Wight as a distinct species from the didymum 

 of our eastern coast, but it only differs slightly in the inflorescence, and is not now considered specifically distinct ; the wood is close grained and 

 hard, and very dark coloured inthe centre. 



Analysis. 



1. A flower bud, showing the lobes valvate, 



2. A full flower. 



3. The same corol removed, showing the style and mitre-sbaped stigma. 



4. A corol opened out. 



5. Anthers, front and back view. 



6. Ovary cut vertically, showing the ovules solitary in each cell and attached to near the apex of, the axis, and the prominently rais- 



ed slightly hairy disk, which is hollow in the centre where the style enters. 



7. Ovary cut transversely. 



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