fyonioea.'] xc. convolvulace^ (baker and rexdle). 129 



shallowly (rarely deeply) 5-lobed : miclpetaline areas well-defined, and 

 often hairy, especially in the young flower. Stamens inserted low clown 

 in the corolla-tube ; anthers and stigma rarely exserted ; filaments 

 filiform, sometimes dilated at the base ; anthers ovate-oblong or linear, 

 sometimes spirally twisted when old. Disc annular, entire or sinuate, 

 rarely obsolete. Ovary usually 4-ovuled, 2-4-celled, rarely G-ovuled, 

 8-celled ; style filiform; stigma capitate, entire, or 2-lobed. Capsule 

 globose or ovoid, usually 4- or 6-valved, rarely splitting irregularly or 

 indehiscent. Seeds glabrous or hairy, 4-6, rarely fewer by abortion ; 

 cotyledons broad, plicate. — Herbs or shrubs, usually twining, sometimes 

 prostrate, creeping, rarely erect. Peduncles axillary; flowers 1, few or 

 many in a lax or dense simple or compound cyme ; bracts small or 

 large, deciduous or persistent. Flowers large or small, very various in 

 colour, usually white or red-purple. 



Species about 400, spread throughout the tropical and subteraperate regions of 

 both hemispheres. 



§ 1. Calycanthemum. — Annual or perennial herbs of very various habit, rarely- 

 erect or suberect, often with long trailing branches or climbing. Leaves generally 

 entire with entire or cordate base. Flowers small or moderate, rarely large ; sepals 

 herbaceous, ovate or lanceolate, rarely linear, acute to acuminate, rarely obtuse, 

 sometimes broadened and cordate or auriculate at the base. Seeds often pubescent. 

 Flowers minute. Sepals 2-3 lin. long. Corolla scarcely 

 exceeding the calyx. 

 Leaves entire. 



Leaf-base cordate. 

 Capsule glabrous. 



Stems prostrate 1. I. verticillata. 



Stems climbing. 



Peduncle suppressed. Flowers geminate . 5. 1. cynanehifolia. 

 Peduncle 1-1| in. long. Flowers 6-8 in a 



lax cyme . . . . . . 6. J. Carsoni. 



Capsule hairy. 



Sepals acuminate. Corolla purplish . . 2. 1. eriocarpa. 



Sepals blunt. Corolla yellow . . . 4. I. sulphurea. 



Leaf -base entire (rarely shortly cordate in I. leu- 

 canthemum). 



Corolla white 3. J. leucantheinum. 



Corolla red . . . . . • .1.1. coscinosperma. 



Leaves deeply cut 8. I. hotschyana. 



Flowers small. Corolla less than 1 in. long (see also 

 I. haclceliana and I. cardiosepala). 

 Sepals 5 lin. long. 



Sepals broadly ovate. Corolla 6 lin. long . . 9. I. eurysepala. 



Sepals ovate-acuminate. Corolla 8 lin. long . . 10. I. commatophylla. 



Sepals 3 lin. long. 



Sepals bluntly ovate. Corolla 6 lin. long . . 14. I. curtipes. 

 Sepals linear-lanceolate. Corolla less than 1 in. 



lono- .....-• 12. I. Morsoni. 



Stem climbing, puberulous. Corolla pale red . 11. I. leptocaidos. 

 Stem procumbent, glabrous. Corolla yellow . 13. I. demissa. . 

 Flowers moderate, rarely rather large. Corolla exceed- 

 ing 1 in. in length (except I. hackeliana and I. 

 cardiosepala). 

 VOL. IV. SEC. 2 K 



