Mr. J. Miers on the genus Cacabus. 255 



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

 epigynous gland. 



2. Cacabus Nolanoides (n. sp.) ; — herbaceus, molliter villosus, caule 

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

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

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

 sulis, petiolo late dilatato, ciliato, folii longitudine ; 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 \\ inch long, the calyx is 

 6 lines long and 4 lines broad, the corolla is \\ inch long, and 

 \\ inch across its somewhat expanded and nearly entire border. 

 The peduncle in fruit is reflexed, 1 \ inch long ; the enlarged calyx 

 is 8 lines long and 7 lines broad, the inclosed berry measuring 

 3 lines in diameter. This plant, which so greatly resembles the 

 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. Cacabus ? infiatus. Nolana inflata, R. fy P. Flor. Peruv. ii. 

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

 foliis radicalibus confertis, oblongis, in petiolum 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 ; 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," 

 which the fruit of Cacabus almost appears to be, from its project- 

 ing placentae. It has a prostrate habit, is about a foot long, its 



* A drawing of this species, with generic details, will be given in plate 49 

 of the ' Illust. South Amer. Plants.' 



