Prof. Don’s Descriptions of Indian Gentianee. 531 
ratis, corollà campanulata calyce breviore, stigmatibus globosis, capsulà 
subrotundá. 
Canscora pusilla. Wall. Cat. n. 4366. G. Don Syst. Gard. & Bot. iv. p 199. 
Pladera pusilla. Roxb. Fl. Ind. i. p. 403. 
Hopea dichotoma. Vahl. En. i. p. 3. 
Exacum sessile. Milld. Sp. Pl. i. p. 635. 
Habitat circa urbem Dehli. Royle. ©. 
As we have before observed, an evident affinity is established between the 
Scrophularinee and Gentianee by means of this genus, which comes near to 
the Gratiolee both in habit and structure, as may be seen by comparing 
C. decussata with Torenia asiatica. The C. pusilla departs from the rest of 
the genus by its globular stigmata and by the form of its calyx and corolla, 
and on these accounts it would seem to constitute the type of a distinct group, 
to which the name of Hopea ought to be restored. 
Gen. XI. EXACUM. Brown. 
EXAGt sp... 
Calyx 4-fidus, Corolla rotata, 4-fida, marcescens : tubo ventricoso. Stamina 4, 
exserta, declinata: filamenta teretia: anthere elongate, apice ecallosce, 
rimà brevi dehiscentes; deflorate stricte. Stylus declinatus. Stigma 
indivisum, clavatum. Capsula globosa, crustacea, 2-locularis: valvis 
margine introflexis. Placente 2, spongiosæ, septo completo adnate, 
demüm utrinque liberze. Semina minutissima, scrobiculata. 
Herbe (Indis Orient.) annue, erecte, ramose, foliis oppositis subsessilibus 
3—5-nerviis, floribus axillaribus terminalibusque luteis v. purpureis. 
1. E. pedunculatum, diffusum; foliis petiolatis oblongis 3-nerviis, calycibus 
- tubum corollz subzequantibus. 
Exacum pedunculatum. Linn. Sp. Pl. p. 163. Willd. Sp. Pl. i. p. 634. 
Wall. Cat. n. 4359. 
Habitat in India orientali ad Nourungabad. ©. 
2. E.tetragonum, strictum ; foliis subamplexicaulibus ovato-lanceolatis acutis 
5-nerviis, floribus 4-fidis, calycibus corollz tubo multd longioribus, geni- 
talibus declinatis. 
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