Lobeliaceas.] MEXICO. 301 



unequal. The stems are leafy to the top, and hence the flowers are axillary. In L. mucronata, the leaves 

 suddenly become bracteas among the flowers, and then the flowers are said to be racemose ; but this we con- 

 sider no permanent character, as is clearly shown in the following species. 



2. L. lanceolata; herbacea pubescens, caule erecto stricto, foliis sparsis lanceolatis 

 subsessilibus subcoriaceis duplicato-glanduloso-serratis anguste acuminatis, pedicellis 

 elongatis solitariis unifloris axillaribus vel racemosis et foliaceo-bracteatis, corolla glabrius- 

 cula (rubro-flava?) superne usque ad basin fissa, limbo 5-fido, laciniis lineari-acuminatis, 

 filamentis glabris. — An L. rigidula, H. B. K. Nov. Gen. Am. 3. p. 311? 



This belongs to the same group with the preceding, as does the following, and it is possible that the three 

 may be varieties of one and the same species. The present is distinguished from L. ovalifolia by the shape 

 of the leaves and nearly glabrous corolla, and quite glabrous filaments : from L. angulato-dentata, by its 

 downy stem and leaves, which latter are sessile, more rigid, and by the nature of the serratures. 



3. L. angulato-dentata; herbacea? glabra, foliis sparsis tenui-membranaceis lato- 

 lanceolatis angulato-dentatis basi in petiolum brevem attenuatis apice tenui-acuminatis, 

 pedicellis elongatis solitariis axillaribus unifloris, corolla glabra (rubro-flava?) superne 

 usque ad basin fissa, limbo 5-fido, laciniis lineari-acuminatis, filamentis glaberrimis. 



4. L. arabidoides ; annua subcaespitosa glabra, caule gracili paniculato, foliis inferiori- 

 bus lanceolatis grosse inciso-serratis in petiolum attenuatis reliquis linearibus subinte- 

 gerrimis, floribus racemosis, calycis tubo brevissimo ore valde obliquo inferne calcarato, 

 limbi laciniis lineari-lanceolatis inasqualibus, corolla (caerulea) superne usque ad basin 

 fissa 5-fida bilabiata, labio inferiore bituberculato, fructu semisupero. (Tab. LXV1.) 



The curious spur-like process at the lower margin of the calyx, in the sinus of the two shorter laciniae, both 

 of this and the following species, varies in length, and the base of the corolla is prolonged into it. 



Tab. LXVI. Fig. I. Flower ; fig. 2. Fruit -.—magnified. 



5. L. cordifolia ; annua subcaespitosa glabra, caule gracili paniculato, foliis inferioribus 

 longe petiolatis cordato-rotundatis reliquis lanceolatis omnibus grosse inciso-serratis, 

 floribus racemosis, calycis tubo brevissimo, ore valde obliquo inferne brevi-calcarato, 

 limbi laciniis lineari-lanceolatis inaequalibus, corolla (caerulea) superne usque ad basin 

 fissa 5-fida bilabiata, labio inferiore bituberculato, fructu semisupero. 



Nearly allied to the preceding, but very different in the foliage, and the spur of the calyx is much shorter. 



6. L. divaricata ; parva annua ramosa glabra, ramis divaricatis tetragonis, foliis sub- 

 dentatis inferioribus ovalibus petiolatis reliquis anguste lanceolatis, floribus racemosis, 

 calycis aequalis tubo turbinato, laciniis lineari-lanceolatis uniformibus, corolla (caerulea) 

 superne usque ad basin fissa quinquefida bilabiata, labio inferiore grosse bituberculato, 

 fructu semisupero. (Tab. LXVII.) 



Hab. Talisco A small, often straggling species, apparently very distinct from any hitherto described. 



Tab. LXVII. Fig. 1. Flower; fig. 2. Fruit -.—magnified. 



