SOUTH AMERICAN PLANTS. 27 
above the villous lines described in the last species ; the style 
is hollow at the apex for one-sixth of its length, and the stig- 
ma, with three expanded, obtuse, and almost obsolete lobes, 
is exserted. Specimens of this plant exist in Sir William 
Hooker’s herbarium, gathered by Dr. Gillies.* 
3. Himeranthus ¢ridentatus (n. sp.) ;—foliis ovatis, angulato- 
sinuatis ; pedunculo petiolo 2-plo longiori; corolle lobis 
oblongis, obtusis, 3-dentatis.—Bonaria. 
This species I found also in the province of Buenos Ayres, 
in 1826, the only specimen of which was afterwards much 
destroyed, but I preserved the drawing made on the spot.t 
The leaves are far more membranaceous and more entire than 
the former species. The lobes of the corolla are longer, 
broader, more obtuse, and 3-dentate. 
DorysTIGMA. 
Among the plants that I found in my last rapid journey 
over the lofty chain of the Andes, in 1825, were two species, 
one of which was also collected about the same time by Doc- 
tor Gillies, from whose specimens it was figured and well 
described by Sir William Hooker in his Bot. Misc. 1, 347, 
tab. 71, under the name of Jaborosa caulescens. The differ- 
ence in the stamens and the stigma, the presence of stipular 
bracts, a somewhat ascending stem, and a far more rigid and 
dry habit, constitute the ground upon which I propose to 
separate it from Jaborosa, from which genus it differs far more 
strikingly than Himeranthus. The following is offered as its 
generic character, its name being derived from Aopy hasta, 
and seyya on account of its lance-shaped stigma. — 
DorystieMA, (gen. nov.).—Calyx profunde 5-fidus. Corolla 
hypogyna, infundibuliformi-tubulosa, intus hirsuta, limbo 
plicato, 5-partito. Stamina 5, corolle fauci inserta, inclusa ; 
filamenta breves; anther virides, oblonge, 2-lobe, late- 
* A representation of this species is given in Tab. v, a. 
+ The above species is also figured in Tab. Iv. B. 
E 2 
