^76 



IPOMCEA ceeriilea. 



Roxburgh' s Ipoinaza. 



PENTAXDKI A MOSOG VSIA. 



Nat. ord. CoxvoLVOLi. Jussieu gen. 132. Div. Stylus untcus. 



CuNvoLvuLACE^. BfoxDii prod. 481. Sect. I. Germeo 

 nullum. 

 IPOMCEA. Suprd vol. l.fol. 9. 



X.ccBrulea, annua, volubilis, pilosa; foliis cordatis, trilobis, villosis; pe- 



dunculis 2-3-floris, margjne corollBe subintegra; stigmatibus S-Iobis; 



capsutis trilocularibus. Roxburgh corom. ined. cum tab.pict. 



Orgt/aiis et ultrh, caule crassitudine penna corvincet terete, piloso. Folia 



atterna, distantia, lato-cordata, triloba, pilosa^ bi-quadriuncialia, lobis acutit 



iitlcnnedio majore longlus acuminata, Pedunculi axillares, solitarii^ longt- 



tudincjerme petiolorum, ^-3-fiori. Bracteoe lineares. Calyx hirsutiiis pilosvSf 



S'plo V. ultra brevior corolla, JfiHolis erectis, patulis, lanceolntis suprd subu- 



lathn elongatis, uometris, interioribus duobus angustioribus. Flores imgnit 



jmllide at vivide ctsrulesccntes. Cor. subi nfundibulijbrmis ; tubus eequalis 



calyci, plus quam duplo brevtor Jiiucc alba; Hmbus subrotato-patens 2-plo 



brevior Jhiice cum tuba simul sumta, laciniis rottindatis viticronato-emarginatis. 



Stam. albicantia^ cequalia Jiiuci, incequaUa, ^XameiWh hifeme pilosis ; antheris 



uchrolevcis. Stigma gramilato-capitatum. Capsulse loculis dispermis. 



The present plant will be seen at once to be very closely 

 allied to tlie Convolvulus Nil of Linnaeus, excellently 

 figured in the J 88th plate of Curtis's Botanical Magazine. 

 The principal mark which appears to distinguish it, is that 

 here the segments of the limb of the corolla are circular and 

 very shallow, while in X'tl they are deep and tapered into a 

 point; the colour is likewise much paler in our plant and 

 the foliage more deeply divided. Slight as these differences 

 may appear, they have been found by Dr. Roxburgh, after a 

 continued cultivation of the two in the Botanic Garden at 

 Calcutta, to be constant, and one plant has never been per- 

 ceived to make the least advance towards the other by any 

 variation in these respects ; so that we have not hesitated to 

 keep the two distinct, after the example of Dr. Roxburgh. 



Native of the East Indies, where however it is said to be 

 a rare plant, growing principally in hedges and on old walls. 

 The seed is sold by the native apothecaries at Calcutta, un- 

 der the name of Kalladmha, and used medicinally. With 

 ^s it is treated as a tender annual, and blossoms late in the 



