ME. D. OLIVEB ON AUItANTIACEiB. 25 



and density of the flowers in the axillary racemes. In some forms the 

 filaments are united almost quite to the apex. I have found the ovary 

 trilocular. 



3. A. ceylanica. Filamentis liheris v. 2 v. 3 inter se plus minus 

 coalitis, disco annulato subcupulato, foliis ovato-lanceolatis, oblongis 

 vel ellipticis. 



Rissoa ceylanica, Am. Pug. PI. Jnd. Or. 6 (324). — Sclerostylis ceyla- 

 nica, Wt. Must. i. 109 ; Thwaites En. p. 46. — S. Arnottiana, Wt., I. c. 



/3. (rotundifolia) foliis rotundatis. — Sclerostylis rotundifolia, Thwaites, 

 En. PL Ceyl. p. 46. 



Loc. Ceylon ! Walker, Graham (Galle, 107 ! Gardner), Thwaites, C. P. 

 1196(?Nilghiris.H6. Hook).— Var.jS. Ceylon! (C.P. 3295) Thwaites. 



4. A. Roxburghii. Filamentis liberis, foliis lanceolatis utrinque an- 

 gustatis saepius longiuscule acuminatis, apice abrupte retusis margina- 

 tisve. 



Sclerostylis Roxburghii, Wt. Icones, i. 72. — Limonia ? caudata, Wall. — 



Amyris simplicifolia, Roxb. Ft. Ind. ii. 244, tab. (Mus. E. I. C.) 2478. 



Loc. Churra, Khasia! J. D. H. Sf T. T.; (Hb. Calc. 1837, in Hb. 



Griffith). 

 Differs from A. ceylanica in its narrower acuminate leaves. The ovary 

 rests on a short stipitiform disk, which appears scarcely so broad as its base. 



*** Calyx 4-5-lobatus. Ovarium ssepius 4 (rar. 5) -loculare, ovulis gemi- 



natis. 



5. A. missionis. Floribus ssepius tetrameris. 



Limonia missionis, Wight in Hook. Bot. Misc. iii. p. 291, tab. supp. 



xxxiii. — Limonia? missionis, Wall. Cat. 6358. 

 Loc. Red Hills, Madras! G. Thomson in Hb. Hook; Ceylon! Thwaites 



(C. P. 1194). 



**** Calyx 5-lobatus v. partitus. Ovarium 2-3 (rar. 4) -loculare, ovulis 



solitariis. 

 a. Stamina 10. 



[A. nitida. Sclerostylis nitida, Turcz. inMosc. Bull. 1858. p. 249. 



Ramuli teretes, incani. tfolia ovalia v. ovali-lanceolata, vix acuminata, 

 apice emarginata, integra v. obsolete crenulata, glabra, parallele et 

 crebre venosa, 1 \-2l unc, petiolo 1-2 lin. long. Flores in racemis cy- 

 mosis, axillaribus, pauci-multifloris, 4-2 unc. longis. Calyx 5-partitus ; 

 lobis rotundatis, obtusis v. subapiculatis, marginibus imbricatis, cdiatis. 

 Petala 5, oblonga v. elliptica. Stamina 10, alterna breviora, libera v. 

 interdum filamentis irregulariter plus minus coalitis. Discus cupulatus, 

 basin ovarii arete cingens. Ovarium 2-3 (rar. 4) -loculare ; ovulis in 

 loc. solitariis. Stylus distinctus. Stigma 2-3 (4) -lobulatum. 



Var. &. Flores in racemis v. ssepius in paniculis strictis, cymosis, axilla- 

 ribus, apices versus ramulorum. —Sclerostylis atalantioides,Vi T t. & A.? 

 A. Gray, U. S. Expl. Exp. i. 234. 



