SOUTH AMERICAN PLANTS. 



63 



derably by the broad decurrent wings of the stigma, which hood 

 the anthers of the somewhat shorter pair of stamens : the stigma 

 IS broad, membranaceous, deeply emarginate at its apex, consti - 



wmcs 



ures 



under side and keeled on tlie upper surface by the prominent 

 sharp margin of the style, which carinated edge is terminated in 

 the sinus by a viscous globular gland. The capsule is small, 

 consisting of two bifid valves, parallel to the dissepiment, and 

 inclosed by the persistent calyx. I had no opportunity of exa- 

 mining its seeds *. 



Leptoglossis. 



This genus was founded by Mr. Bentham, in the 'Botany' of 

 the Voyage of the Sulphur, for a Peruvian plant, which has not 

 yet been figured, nor have the details of its structure been 

 hitherto delineated or minutely examined. It possesses much 

 the habit of a Browallia^ to which it oficrs some resemblance 

 in the form of its corolla ; but it differs from that genus in 

 having a fifth sterile stamen and in the shape of its stigiua, 

 which is intermediate between that of Ptsroglossis and of Salpi- 

 glossis or Nicrembergia. No opportunity had presented itself for 

 examining the aestivation of the corolla of Leptoglossis when 

 I offered the remarks upon the tribe of the SalpigIosside(e 

 huj. op, vol. i. p. 173); but recent observation has enabled 

 me to state that it is decidedly imbricative, and as far as can be 

 judged from well-macerated dried specimens, it is apparently of 

 that modification which I have called replicative {he, cit. 173), 

 the postical lobe being altogether interior, as in Nieremhergia 

 and Petunia. The alliance of Leptoglossis is clearly with the two 

 latter genera, agreeing with the former in its small lanceolate 

 leaves, its calyx, its slender tubular corolla, in the dilatation of 

 its stigma, in the long stipitate support of the ovarium, in its 

 persistent hypogynous glands, and in its stipitate capsule. With 

 the latter genus it agrees in the obliquity of the border of its 

 corolla, and the somewhat palatc-like enlargement of the tube 

 below the throat. The position of Leptoglossis is manifestly 

 among the Petunie^e, and not in the Salpiglossidea>y as suggested 

 in the tabular arrangement {loc. cit. p. 165), It appears to me 

 to hold no relation whatever to Schwenkia. 



The following generic character has been made, after a careful 

 analysis of the plant referred to : 



Leptoglossis, Bth.nonD.C. Char, emend. — Calgw brcvis, tu- 

 bulosus, nervis 15 in seriebus 5 temariis pressius ordinatis, 



* Tliis plant, with its analytical details, is shown in plate 52 of this 

 volume. 



