ORDER 87. GESNERIACE^E. 219 



Sta. 4, included. Caps. 1-celled, 2-valved, valves placentiferous in the mid 

 die. Half-shrubby climbers, from S. Am. Tender. (Calampelis, Don.) 



1 E. SCABER. Lv?. bipinnate ; cor. tube inflated above the calyx, scarlet, drooping, 1'. 



2 E. LONGIFLORA. Lvs. tripinnate ; cor. tube cylindric, curved, yellow, 3', drooping. 



5. MARTYNIA, L. UNICORN PLANT. Cal. 5-cleft, bracteolate at base. 

 Cor. campanulate, tube gibbous at base, limb 5-lobed, unequal. Sta. 5, one 

 rudimentary and sterile, four didynamous. Caps, coriaceous, ligneous, 4- 

 celled, 2-valved, each valve terminating in a long, hooked beak. Chiefly 

 southern, branching, viscid-hairy, strong-scented. Flowers large. 



1 M. proboscidea Glox. Branches mostly decumbent ; Ivs. cordate, entire, round- 



ish, villous, upper ones alternate ; fls. on long, axillary peducles ; beaks 2 (when the 

 valves separate), hooked ; corolla dull yellowish. Fields, thickets, S. and W. 2f. Jn. 



2 OT. FRAGRANS. Lvs. roundish-3-lobed, sinuate-dentate ; raceme few-flowered ; corolla 



purple, yellow inside, fragrant ; beaks shorter than the pod. Mexico. 



3 OT. LV.TEA, with large yellow funnel-form corollas, is from Brazil. 



6. SESAMUM, L. OIL-SEED. Cal. 5-partecl. Cor. campanulate, 3- 

 cleft, the lower lobes the longest. Sta. 4, didynamous. Stig. lanceolate. 

 Caps. 2-celled, the cells divided by the inflexed edges of the valves. (D 

 E. India. Leaves petiolate, the lower opposite, upper alternate. 



S. Iiidicnm DC. Lvs. lance-ovate, lower ones 3-lobed, upper ones undivided, serrate : 

 flowers axillary, sessile, pale purple. Fields and gardens. Seeds rich in oil. 



ORDER LXXXVII. GESNERIACE^. GESNERWORTS. 



Tropical plants, somewhat fleshy, with opposite or radical leaves, no stip- 

 ules, and showy, somewhat irregular flowers. Calyx half adherent to the 

 ovary (in the following genera), o-parted. Corolla tubular, 5-lobed, imbri- 

 cated in bud. Stamens 2 or 4, didynamous, with a rudiment. Style 1. 

 Fruit a capsule nearly free, 1-celled, with 2 double, many-seeded placentae. 



Corolla tube bell-form, equally tumid at base, limb oblique GESNERIA. 1 



Corolla bell-funnel-form, gibbous at base, limb short GLOXINIA. 2 



Corolla salver-form, subequal, limb flat-spreading ACHIMENKS. 3 



1. GESNERIA, L. y With tuberous roots and toothed leaves. Sta. 

 4, with a rudiment, anthers cohering at first. Brazil. 



1 G. LINDLEYI. Lvs. opposite, ovate-oblong, rugous ; flowers in a terminal raceme ; 



corolla 18", scarlet or red, the limb very short. Brazil. 



2 G. DOUGLASII. Leaves whorled, ovate, pubescent, with the numerous red-yellow 



flowers in their axils. The species are many and much mixed. 



2. GLOXINIA, L'Her. Has often radical leaves (or with very short 

 stems), crenate, and large axillary or radical flowers. Stamens 4, with a 

 fifth rudiment, anthers cohering. Brazil. 



G. SPECIOSA. Leaves oval-oblong, on long radical petioles ; ped. subradical, 1-flow- 

 ered ; corolla bell-shaped, ll', violet, varying to white. 



3. ACHIMENES, Br. Erect, downy herbs, with scaly buds. Anth. 

 4, separate, the rudiment on the base of the corolla. 



