CONVOLVULACEJ!. 467 



4. I. tuba, Don. Glabrous; leaves cordate-rouudish, ajjiculate, entire; peduncles 

 1 -flowered, at length thiclcened ; sepah mbeqiial, ovate-oblong, blunt, one-third to one- 

 fourth as long as the cylindrical corolla-tube ; stamens included ; capsule globose, enclosed 

 by the calyx ; seeds puberulous and villous at the hilum and along the angles. — Convolvu- 

 lus, ScUecht. Calonyotion grandiflorum, Chois. : exclus. jyKO».— This species, confounded 

 by Choisy with Conv. grandifiorus, Jacq., is to be compared with /. longifiora, E. Br., 

 having, as described by him, two glands at the top of the petiole. Corolla white : tube 

 2i"long, 8"'diam. ; capsule 1" diam.— Hab. S.Vincent!, GtuM.; [Haiti to French is- 

 lands ! ; Guiana I]. 



Sect. 2. Opekculina, Manzo.— Sepals large, scarious, at length cartilaginous. Corolla 

 large, infundibular' or campanidate : tube broad, dilated from the base. Anthers in- 

 cluded, at length subcontorted. Ovary i-celled, ^-ovulate : no cupuliform disk. Cap- 

 sule rupturing transversely about the middle. 



5. I. ventricosa, Chois. Stem pubescent, glabrate; leaves cordate-roundish, mwxo- 

 nate-apicttlate ; peduncles few-1 -flowered, at length thickened: bracts oblong, deciduous; 

 sepals ovate, rounded, one-third to one-fourth as long as the corolla ; corolla.infundibular : 

 tube campanulate ; capsule globose, large, thin above the middle, included by the growing, 

 connivent sepals : seeds minutely puberulous. — Convolvulus, Berter. C. grandifiorus, Jacq. 

 (Find. 3. t. 69) is perhaps a larger-flowered form of the same, distinguished from Calonyo- 

 tion by the corolla dilated from the base. — Sepals 1", at length nearly 2" long ; corolla 

 yellowish-white, 24"-3" long ; capsule 1" diam.— Hab. Antigua !, Wullschl.; Triuidad I, 

 Cr. ; [Swedish and French islands I]. 



6. I. pterodes, Chois. Glabrous ; stem' and peduncles often 2-winged ; leaves cordate, 

 pointed, repand-entire or sinuate at the auricles; peduncles few-1 -flowered; sepals ovale- 

 roundish, half as long as the corolla ; corolla broadly campanulate-ohconical, yellow ; 

 " capsule globose." — Corolla 2" long and as broad at the summit, opening at nine o'clock 

 inthemoming (O.).— Hab. Trinidad!, Cr.; [Panama!, Venezuela!, Guiana]. 



7. I. tuberosa, i. Glabrous; leaves deeply palmatifid: segments 7, elliptical-lanceo- 

 late, pointleted, entire, peduncles few-flowered, at length thickened above ; sepals ovate, 

 rounded, half as long as the corolla ; corolla campanulate-infundibular, feWovt; capsule 

 globose, large, chai-taceous, included by the growing, connivent sepals : dissepiment simple, 

 or at length obsolete : seeds pubescent. — SI. t. 96./. 2. — A very high climber; tuber "as 

 large aa a head," not eatable ; common base to the leaf-segments 6"'-8"' diam. ; corolla 2" 

 long; capsule li"-2" diam. — Hab. Jd.m!acs.\, Mst., March ; [Cuba I to French islands I ; 

 Mexico I to Guiana ; East Indies !, trop. Africa] . 



Sect. 3. ScHiziPS. — Sepals ntemtranaeeous, at length leathery. Corolla campanulate- 



■ infundibular, white. Anthers included, at length recarved-subcontorted. Opary 4-2- 



celled, i-ovulate, supported by a cupuliform disk. Capsule dehiscent into irregular 



* 



Ovary 2-celled ; dissepiment of the capsule at length obsolete. 



8. I. dissecta, Pursh. {non W., S. Br.). Branches pilose ; leaves deeply palmatifid : 

 Pigments 7-5, elliptical-lanceolate, pinnatijid or sinuate-dentate, glabrcscent ; peduncles • 

 l(-2)-flowered ; sepals glabrous, oblong, bluntish, longer than half the corolla or half as 

 long, connivent around the capsule ; ovary 2-celled ; seeds glabrous.^ — Jacq. Obs. 3. t. 28. 

 — Convolvulus, L. I. sinuata, Orteg. — Leaves yielding a flavour of prussic acid; calyx 

 8"'-10'", corolla 1^" long, the latter white (or purplish at the base). — Hab. Jamaica !, Al., 

 Dist., Berter., March ; Antigua !, Nichols., Wullschl., S. Vincent !, Guild. ; Trinidad !, Cr. ; 

 [southern United States ; and all tropical countries !]. 



** Ovary i-celled ; dissepiment of the capsule persistent. 



9. I. pentaphylla, Jaqg. {non Cav.). Branches pilose; leaves 5-partite : segments 

 elliptical or lanceolate-elliptical, pointleted, entire ; cymes lax, peduncled ; sepals ovate- 

 oblong, bluntish, unequal, 3 exterior longer, densely hirsute-pilose below, longer than half 

 the corolla or half as long, connivent around the capsule; capsule 4-celled: seeds glabrous. 

 — Jacq. Ic. Rar. t. 319. — Convolvulus, L. Batatas, C/4ot>,— Exterior sepals 8"'-10"', their 



