192 



THE DICTIONARY OF GARDENING. 



Ipomcea continued. 



rather downy beneath. United States, <fcc., 1776. Hardy 



perennial twiner. (B. M. 1939, under name of Convolvulus pan- 



duratus ; B. M. 1603, under name of C. candicans.) 

 I. platensis (Plata), ft. violet ; calyx very smooth ; peduncles 



one-flowered, shorter than the leaves. June to September. I. 



palmate, h. 10ft. South America, 1817. Stove evergreen twiner. 



(B. R. 333.) 

 I. pulchella (neat), fl. purple ; lobes of corolla emarginate, 



Sffcate ; peduncles twisted, one to three-flowered. December and 

 anuary. I. quinate ; leaflets petiolate, elliptic, acuminate. A. 10ft. 

 Ceylon. Stove evergreen twiner. (B. M. 4305.) 

 I. Purga (purge).* True Jalap Plant. Jl. purplish-rose ; corolla 

 limb broad and flat; peduncles generally one-flowered, longer 

 than the petioles. Autumn. 1 sagitto-cordate, acuminate, 

 glabrous. Xalapa, 1838. Stove evergreen twiner. SYN. Exo- 

 : gtmium Purga, (under which name it is figured in B. B. xxziiL 49). 



FIG. 318. IPOMCEA PURPUREA, showing Habit and detached 



Flowering Shoot. 



'X. purpurea (purple).* ft. dark purple; calyx hispid; peduncles 

 many-flowered. June to September. I. cordate, undivided. 

 h. 10ft Tropical America, 1629. See Fig. 318. This hardy 

 annual is the well-known and popular Convolvulus major of seed 

 catalogues. SYN. Convolvulus purpurea (B. M. 113). /. p. incar- 

 nata (B. M. 1682) and /. p. varia (B. M. 1005) are two vaneties. 



Ipomcea continued. 



FIG. 319. IPOMCEA QUAMOCLIT, showing Habit and detached 

 Flowering Branchlet. 



I. Qnamoclit (Quamoclit).* fl. dark red, solitary. July to 

 September. I. pinnate ; pinnae filiform, h. 6ft. Tropical America, 

 1629. Greenhouse twining annual. See Fig. 319. (B. M. 244.) 



I. rubro-caerulea (reddish-blue.)* ft. white in the bud, with the 

 limb of a rich lake-red, which, when the flower is fully expanded, 

 becomes of a fine purplish-blue ; peduncles three or four-flowered, 

 thickened, somewhat racemose. November, December. I. on long 

 petioles, deeply cordate, acuminate. South Mexico, 1830. Stove 

 evergreen twiner. SY.\S. /. Amiral Grasset (R. H. 1880, p. 270), 

 /. Hookerii. See Fig. 320. (B. M. 3297.) 



L setosa (bristly), ft. purplish-red, salver-shaped ; peduncles 

 robust, many-flowered, trichotomously cymose. August to 

 October. 1. naked, cordate, three-lobed ; lobes dentately 

 sinuated. Branches, petioles, and peduncles hispid from bristles. 

 Brazil Stove deciduous twiner. (B. R. 335.) 



FIG. 320. IPOMCEA RUBRO-C^ERULEA, showing Habit and 

 detached Flowering Shoot. 



I. sinuata (sinuated). ft. white, with a reddish throat ; peduncles 

 one-flowered, longer than the leaves. June to September. I. deeply 

 seven-parted; segments sinuated or pinnatifid. Stem, petioles, 

 and peduncles very pilose. Tropical America, 1813. Greenhouse 

 evergreen twiner. See Fig. 32L 



FIG. 321. LEAF OF IPOMCEA si. \UATA. 



X. Tweedlel (Tweedie's). /. purple ; corolla with elongated tube ; 

 sepals ovate, acute, unequal ; peduncles one or two-flowered. 

 June and July. 1. cordate, acute, entire, h. 6ft. Panama, 1838. 

 Stove evergreen twiner. (B. M. 3978.) 



L tyriantliina (tyrianthine). /. dark purple ; calyx villous ; 

 peduncles many-flowered. August to November. I. roundish- 

 cordate, acuminate, villous. Stems fruticose, warted. h. 10ft. 

 Mexico, 1838. Greenhouse deciduous twiner. SYN. Pharbitis 

 tyrianthina (under which name it is figured in B. M. 4024). 



L verslcolor (various-coloured), ft. bright rosy-crimson at first, 

 changing as they expand, first to orange and then to pale yellow, 

 disposed in scorpioidal racemes ; corolla limb salver-shaped, with 

 a swollen tube. June. I. cordate at the base, three-lobed. South 

 Mexico, 1841. (B. B. 1842, 24, under name of Mina lobata.) 



XFOMOPSIS. This genus is now included under 

 Oilia (which see). 



IFSEA. Now included under Pachystoma (which 

 see). 



IRESINE (from eiros, wool ; referring to the woolly 

 aspect of the branches). OED. Amarantacece. A genua 

 of about eighteen species of erect herbs or sub-shrubs, 

 natives of tropical and sub-tropical America. Flowers 

 white or greenish, inconspicuous, with three bracts. 

 Leaves opposite, petiolate, very ornamental in the culti- 

 vated sorts. Iresines are indispensable plants in all 

 bedding-out arrangements, on account of their beautifully- 

 coloured foliage. They are easily propagated in spring 

 for this purpose, by inserting in a close pit or propagating 

 frame. The best plan for securing and preserving 

 healthy stock plants is, to insert a quantity of cuttings 



