138 Mr. J. Miers on the genus Nectouxia. 



pressa, ssepe (an semper ?) superne in laminam membranaceam 

 pandurseformem apice acntam subito dilatata : antherte lineari- 

 oblongse, erectse, mucronulatae, medio dorsi afnxse, 2-loculares, 

 loculis parallelis, usqne ad medium disjunctis, rima longitu- 

 dinali antice dehiscentibus. Ovarium conicum, disco parvo 

 carnoso impositum, 2-loculare, placentis dissepimento utrin- 

 qne adnatis, multiovulatis. Stylus filiformis, tubo corollse 

 excedens. Stigma exsertum clavatum emarginato-2-lobum. 

 Cetera ignota. — Herbse perennes Mexicans foetida ; folia peiio- 

 lata sparsa, superiora subgemina, cordata, integra. Mores so- 

 litarii, extra-aocillares, pedunculati, cernui. Corolla flava, sicca- 

 tione nigrescens. 



1. Nectouxia formosa, H. B. K. iii. 10. tab. 193; — herbacea, 

 caule angulato ; foliis cordatis, ovatis, acutis, hirtellis ; calyce 

 piloso-hispido, corolla flava, staminibus tubo haud superan- 

 tibus. — Mexico (Real del Monte). 



This plant is described as being scarcely 8 inches in height 

 with a fusiform root : its leaves, sometimes geminate, are from 1| 

 to 1 j inch long, and 1 to 1^ inch broad, upon a petiole 9 to 10 

 lines in length : the peduncle of its solitary axile flower is half an 

 inch long, its calycine segments 6 lines, the tube of its corolla 

 10 lines, the lobes of its border 7 lines and S~ lines broad. 



2. Nectouxia bella (n. sp.) ; — herbacea, caule striato ; foliis cor- 

 datis, ovatis, acutis, utrinque sparse et mollissime pubescen- 

 tibus ; flore cernuo, staminibus infra faucem corollse omnino 

 inclusis, filamentis superne in ligulam latam membranaceam 

 expansis. — Mexico (Real del Monte, Coulter, no. 1270; — circa 

 Tolucam, Andrieux, no. 180). 



Although found near the same locality, and in no way differ- 

 ing in the shape of its leaves, its herbaceous stem and tapering 

 root, this plant offers many points of structure at variance with 

 the foregoing species, if we depend upon the usually accurate 

 descriptions of Prof. Kunth. It is double its height, and its 

 leaves are proportionally larger, being ofteo geminate, 2f inches 

 long, 2 inches broad, upon a petiole f inch in length ; the pedun- 

 cle of its axillary flower is 1 inch long, its narrow linear acute 

 calycine segments are \ to -f inch, the tube of its corolla 1 inch to 

 1^ inch in length, and 2 to 3 lines in diameter at the mouth ; the 

 lobes of its border are lanceolate, oblong, very patent, and f inch 

 long ; the corona, with ten obsolete teeth, protrudes 2 lines be- 

 yond the throat; the stamens, inserted somewhat above the middle 

 of the tube, are 3 lines long ; the ovarium is elongated and point- 

 edly conical, 3 lines long, f line at base, and is seated on a pro- 



