Tab. 7849. 

 HETEROTOMA lobelioides. 

 Native of Mexico and Guatemala. 



Nat. Ord. Campanulace^. — Tribe Lobelik^. 

 Genus Heterotoma, Zucc; {Benth. ^ Rook.f. Gen. Plant, vol, ii. p. 663.) 



Heteeotoma lobelioides ; herba erecta, ramosa, raraulia gracilibus cum petioHs 

 foliorum marginibus nervisqae subtus pubeacentibus, foliis 3-4 poll, 

 longia ovato-lanceolatis acuminatia subremote dentatia basi rotundatia 

 cuneatisre pallide viridibus nervia utrioque 5-7, petiolo gracili 1-2 poll, 

 longo, supremia aessilibua minoribua Hneari-lanceolatis, pedunculis axil- 

 laribus 2-polliearibu3 gracilibus glaberriraia, floribua ad 2-poll. longia 

 falcatim incurvis, calycia dentibus viridibus aubulatia 3 ad basia corollae 

 ad I poll, longia divaricatis, 2 ad apicem calcaris corollas minoribua 

 inflexis erectia, corollae caloare tubiformi sangnineo limbo calcare panllo 

 breviore oblongo aureo trifido, lobia seqailongis lateralibus linearibus 

 intermedio oblongo, columna staminea corollae limbo asquilonga. 



H, lobelioides, Zucc. in Flora, vol. xv. (1832) pars II. Beihl p. 101. DC- 

 Predr. vol. vii. p. 350. Endl. Iconogr. t. 53. Van Eoutta in Flore det 

 Serres, Ser. II. vol. iv. (1861) p. 163, t. 1454. Garuel in Ann. Sc. Nat. 

 Ser. IV. vol. xi. p. 270. JSemsl. Biol. Cenir. Am. Bot. vol. ii. p. 270 ; iv. 

 r- QQ. 8. Wats, in Proe. Am. Acad. vol. xviii. (1883) p. 1 U. Benih. PI. 

 Sartw. p. 89. 



Myopsia mexicana, Presl, Prodr. Monogr. Label, p. 8. 



Lobelia calcarata, Bertol. Fl. Guateinal. p. 9. 



Heterotoma is a very singular genus, consisting of seven 

 Mexican and Central American species, of which E. lobe- 

 lioides is the type. Its distinctive character consists in 

 the base of the corolla being produced downwards into a 

 horn, to the back of which the narrow lower lip of 

 the calyx is adnate nearly to its tip. In E. lobelioides the 

 two lobes of the lower lip of the calyx are represented by 

 two green subulate spurs, contrasting curiously in colour 

 with the dark blood-red of the spur itself. The upper 

 lip of the calyx consists of three green, subulate, spreading 

 spurs at the base of the corolla. 



H. lobelioides is a mountain plant, discovered by Karwin- 

 ski in Southern Mexico, at eight thousand feet elevation, 

 on the Cumbre de St. Antonio. It has also been collected 

 in Costa Rica by Herbst ; in Guatemala, at Acatenango, by 

 Hartweg ; and on the Volcan de Santa Maria by tlie late 

 Mr. O. Salvin, one of the authors of the magnificent 

 August 1st, 1902. 



