ILLUSTRATIONS OF INDIAN BOTANY. 193 



Thougli thus sparingly employed for medicinal or economical purposes; several find favour 

 with amateurs of fine flowers, and well deserve this distinction. 



Remarks on Genera and Species. In orders of such vast extent it is impossible, by 

 any amount of remarks, for which I could find space in this work, to convey an adequate concep- 

 tion of its peculiarites. I shall, therefore, here, as in some preceding instances, endeavour to do 

 so by means of the pencil rather than by the pen, and with that view give, as illustration^ 

 of each of Mr. Bentham'*s tribes, natives of India, figures of the flowers and analyses generally 

 of the generic characters of one or more genera of each tribe. These I conceive will be more 

 useful and instructive to the student than better looking, but much easier executed figures of 

 three or four species, however well selected or graphically executed. 



The following is Mr. Bentham's synopsis of the characters of the tribes into w^hich he has 

 distributed the genera of this extensive and difficult order. I give the conspectus complete, but 

 ' will only illustrate those having Indian representatives. 



COJVSPECTUS OF THE TRIBES. 



Sub-order Sulpiglosside^. 



Tribe I. Sapiglosseag. ^Estivation of the corolla plicate or imbricato-bilabiate, the posterior lip (as regards 



the primary axis) exterior with the sinuses often plicate. Inflorescence at first centrifugaL 



Sub-order Anterrhinide.^. 



Estivation of the corolla imbricato-bilabiate the posterior lip exterior. Inflorescence either centripetal 

 or compound, the divisions forming centrifugal cymes (cymes sometimes reduced to a single flower on a 

 jointed peduncle with two opposite bracts) the primary one a centripetal thirse. 



Tribe IL Calceolarieje. Corolla 2-lobed, lobes entire, concave. Calyx valvately 4-lobed. Inflorescence com- 

 pound. Leaves opposite or whorld. 



Tribe III. Verbasceje. Corolla rotate, two-lipped, lobes flat, efossulate. Stamens declinate. Inflorescence 



centripetal, uniform. Leaves alternate. 

 Tribe IV. Hemimerideje. Corolla rotate or rarely tubular [i. e. a tube distinct from the limb] bilabiate, with 



a saccate or calcarate fossula. Capsule 2-valved. Inflorescence centripetal, uniform. Leaves, the lower 



ones at least, opposite or whorld. 

 Tribe V, Antirrhijve^. Corolla tubular, often saccate or spurred. Capsule opening by pores. Inflorescence 



centripetal, uniform. Leaves, the lower ones at least, opposite or whorld. 

 Tribe VI. Chelone^- Corolla tubular, neither saccate nor spurred. Capsule 2-4-valved (rarely baccate or 



indehiscent). Segments of the calyx imbricate in aestivation. Inflorescence compound. 

 Tribe VIL EscoBEnrE^. Corolla tubular, neither saccate nor spurred. Capsule 2-valved. Calyx large, val- 



vate in aestivation. Inflorescence centripetal, peduncles with opposite bracts. Leaves, the lower ones 



at least, opposite. , . ^ 



Tribe Vin. Gratioleje. Corolla tubular, rarely (in Sphenandra) subrotate, neither saccate nor calcarate. Cap- 

 sule 2-valved, rarely indehiscent. Segments of the calyx imbricate in estivation. Inflorescence centripetal, 

 imiform, rarely irregularly compound. 



Sub-order RhinanthidevE. 



^Estivation of the corolla imbricate, the posterior lip never exterior. Inflorescence either centripetal or 

 compound, or rarely (in a few Buddleias) centrifugal.— In the tribes 9 to 13, anthers always muticous; 



in the tribes 9 to 14, lobes of the corolla flat. ^ ^ » . . . , * ^ * .^ 



Tribe IX. SiBTHORPiE^. Leaves alternate or with the flowers fascicled at the jomts, rarely opposite, not con- 

 nate, the floral ones either conformable or the upper ones decreasing m size. Flowers axillary, soniary 



^ or fascicled, rarely cymose. . .. m^„^^^ «^^^o-» ^^ 



Tribe X, BuDDLEiEiE. Leaves opposite, connected by a membrane or transverse Ime. Flowers cymose or 



Tribe XLDw^taI^^^ *inSrescence centripetal, racemose- Leaves all alternate, the lower ones petioled, 



Tribe XlF^EKomcEJi^. Inflorescence centripetal, racemose. Leaves, at least the inferior ones, opposite. Sta- 

 ^ mens distant. Anthers 2-celled, or by confluence one-celled. ^r.T^n^\i^ 



Tribe XIII. BucHNEREiE. Inflorescence centripetal, racemose. Leaves, at least the lower ones, opposite. 



T,ibe i^''d:'^F:^''^U^n::^S,^rSJ:tL,.., a. leas. U,e lower o^ op^osUe. Su- 



n.e„s approximated by pair,. Amher, 8-ceUed cell, often »"ucrona|^ e,„a . ox one «^f «» -P'^,,,. „ 



Tribe XV. Euphrasies. Inflorescence centripetal, racemose. 



concave, erect 



h 



