CONVOLVULACEAE. 



303 



1. Turbina corymbosa (L.) Eaf. 

 White Corymbose Morning-glory, 

 (Fig. 323.) High-climbing or trail- 

 ing, glabrous Leaves s!ender-peti- 

 oled, ovate, entire, IV-'i' long, acute 

 or acuminate at the apex, cordate at 

 the base; peduncles axillary, as long 

 as the leaves or longer, corymbosely 

 or paniculately several-many-flowered, 

 the pedicels slender; sepals oblong, 

 persistent, the 3 inner ones 4"-6" 

 long, nearly twice as long as the two 

 outer ; corolla white, I'-li' long ; 

 capsule ovoid, acute, about half as 

 long as the longer sepals, 1-seeded. 

 [Convolvulus corymbosus L. ; Ipomoea 

 sidifolia Choisy; Eivea corymbosa 

 Hall, f.] 



Occasional in marshes and thickets. 

 Introduced Native of tropical America. 

 Flowers in winter and spring. Some- 

 times planted for ornament. 



Quamoclit Quamoclit (L.) Britton, Cypress Vine, tropical American, 

 commonly planted for ornament, is an annual climber with leaves pinnately 

 parted into linear segments, and scarlet salverform corollas I'-l^' long, on 

 peduncles often longer than the leaves. [Ipomoea Quamoclit L. ; Q. vulgaris 

 Choisy.] 



Quamoclit coccinea (L.) Moench, Small Eed Morning-glory, also trop- 

 ical American and planted for ornament, has similar flowers to those of the 

 Cypress-vine, but its leaves are ovate, long-pointed, entire or angulate-lobed. 

 [Ipomoea coccinea L.] 



JaccLuemontia jamaicensis (Jacq.) Hallier, West Indian, recorded by 

 Eein as found in Bermuda, and cited from him by Hemsley, who doubts its 

 being indigenous, is a creeping vine with small white flowers and linear or 

 oblong leaves. Subsequent botanists have not observed it, and the record is 

 believed to be an error in determination, although Verrill describes the plant 

 correctly and says it grows near the sea. [Convolvulus jamaicensis Jacq.] 



Argyreia speciosa (L.) Sweet, Elegant Argyreia, East Indian, a vine 

 with white-tomentose branches, orbicular, cordate, long-petioled leaves 6'-12' 

 broad, silky tomentose beneath, long-stalked cymes of purplish flowers, sub- 

 tended by large ovate acuminate, thin bracts, the sepals white-silky, the 

 corolla about 2' long, silky except at the plaits, and much narrowed at the 

 base, was grown luxuriantly in a greenhouse at the Agricultural Station in 

 1913. [Convolvulus speciosus L.; A. bracteata Choisy.] 



Argyreia Roxburghii Arn., Eoxburgh's Argyreia, also East Indian, is 

 a similar long vine with smaller, shorter-petioled leaves, and rose-purple flow- 

 ers subtended by small bracts^ in dense, peduncled clusters. It was also 

 luxuriant at the Agricultural Station in 1913. 



Operculina tuberosa (L.) Meissn., Yellow Morning-glory, a climbing 

 vine, with nearly orbicular leaves 4-7' broau, deeply digitately cleft into 7 

 oblong-lanceolate acuminate lobes, the axillary peduncles several-flowered, 

 thickened in fruit, the ovate blunt sepals 1' long or longer, the bright yellow 

 corolla tubular-campanulate, 2-3' long, the capsule I'-l*' long, has been 

 planted for ornament; according to Lefroy it was grown at St. George's prior 

 to 1877. 



