SOUTH AMERICAN PLANTS. 51 



pericarp is membranaceous, indehiscentj and its apex is marked 

 with a callous discoid process, resulting from the hardening of its 

 epigynous gland. 



2. Cacahus Nolanoides [xi. sp.); — herbaceus.molliter villosus^caule 

 striato, dichotome ramoso ; foliis geminis, altero multo minori, 

 oyatis, crassiusculis, undulato- vix sinuato-angulosis, margine 

 ciliatis, basi inaequalibus, utrinque glabris, infcrne nervis pilo- 

 sulis, petiolo late dilatato, cihato, folii Idngitudine ; floribus 

 solitariis, lateraliter extra-axillaribus, pedunculo florifero erecto, 

 fructifero reflexo, corolla cserulea : calyce inflato, membranaceo, 

 10-nervi, reticulatim picto. — Peruvia, v. s. in herb, variis 

 {Mathews, no. 839, sub nomine Nolana spathulatce). 



The leaves of this species are nearly oval, 4 inches long, 2^ 

 inches broad, upon a fleshy dilated petiole, with winged ciliate 

 margins, 2| inches long and nearly 2 lines broad, subamplexicaul 

 at base. The peduncle in flower is 1| inch long, the calyx is 

 6 lines long and 4 lines broad, the corolla is 1| inch long, and 

 1^ inch across its somewhat expanded and nearly entire border. 

 The peduncle in fruit is reflexed, l^ inch long ; the enlarged calyx 



measurin 



o -—-' - 7 -J 



3 lines in diameter. This plant, which so greatly re; 

 figure of Nolana spathulata in the ^ Flora Peruviana,' differs from 

 it in the size of its leaves, the length of the petiole, the shape of 

 the calyx, the size of its corolla, its more entire, not deeply-lobed 

 border, the shape of its stigma, its vesicular calyx, not fleshy and 

 subsequently bipartite, and finally by the very different structure 

 of its fruit. It agrees in many respects however with the de- 

 scription of the text*. 



3. Cacabtis? injlatus. Nolana inflata, R. ^ P- Flor. Peruv. ii. 

 p. 7. tab. 112. fig. a; — herbaceus, pedalis, prostratus, annuus, 

 foliis radicalibus confertis, oblongis, in pctiolum longum imo 

 decurrentibus, caulinis geminatis, ovatis, subobtusis, basi in- 

 sequalibus, breviter petiolatis, petiolo dilatato ; floribus geminis, 

 ex axillis lateraliter ortis, corolla speciosissima, albo-violacea ; 

 fructu calyce striato, ventricoso, incluso. — Peruvia (in arenosis 

 Prov. Arequipse). 



From its inflated calyx, there is every reason to conclude that 

 this plant belongs to this genus, rather than to Nolana. It was 

 not seen by Ruiz and Pavon, being only known to them from the 

 sketch sent them by their draughtsman Tafalla j the fruit is not 

 described as consisting of distinct carpels, but as '^ semina 4-locu- 

 laria,^^ which may have been construed from "fructus 4-locularis,^' 



A draMing of this species, with generic details, is shown in plate 49. 



H 2 



