14 Mr. J. Blackwall on newlij discovered species of Araneidea. 



alliance. This subtribe is made to consist of Nieremhergia, 

 Bouchetia and Fabiana. The latter genus only I consider to 

 belong to Solanacea, on account of the valvate aestivation of its 

 corolla. Of Nierembergia I have given several illustrations and 

 copious analytical details, where the peculiar character of its 

 estivation has been fully shown. The genus Bouchetia, DC, 

 now first published by M. Dunal, does not appear from the cha- 

 racters described (Prodr. 589) to differ in any respect from Nie- 

 rembergia, and especially from N. linifolia and anomala, which 

 are figured in plate 20. of my ' Illustrations/ and where the tube 

 of the corolla is a little more swollen towards the summit, and 

 the lobes of the border smaller than usual, as in the genus in 

 question : in the latter species the insertion of the stamens is 

 even lower than in Bouchetia. 



Of the eleven species of Fabiana enumerated by M. Dunal, it 

 is evident from the characters given that the five first mentioned 

 only belong to the genus. F. grandiflora is probably one of the 

 singular species of Alona (possibly A. rostrata) described by 

 Prof. Lindley, or it may be a plant closely allied to, if not iden- 

 tical with, Phrodus Bridgesii (111. South Am. Plants, tab. 41). 

 F. squamuligera is \^rohab\y Phrodus nodosus {loc.cit. tab. 43 B). 

 F. thymifolia, F. Selloiviana and F. heterophylla, none of which 

 I have seen, appear, from the descriptions given of them, to be- 

 long to Petunia, as Dr. Sendtner has also concluded (Flor. Bras, 

 part 6. pp. 175, 176). 



Under Cestrum, M. Dunal considers Habrothamnus merely as 

 a section of that genus, but in his ' Conspectus ' he places them 

 as distinct genera. For a long while I was dou.btful on the sub- 

 ject ; but on a more careful examination of living plants, an 

 essential difi'erence was found to exist in the floral structure, 

 which was indicated by their habit : these differences were enu- 

 merated on a former occasion {huj. op. vi. 181). 

 [To be coutinued.] 



II. — Descriptions of some newly discovered species of Araneidea. 

 By John Blackwall, F.L.S. 



Tribe OCTONOCULINA. 



Family Salticid.e. 



Genus Salticus, Latr. 



Salticus reticulatu». 

 Length of the female ^^oth of an inch ; length of the cephalo- 

 thorax j^ ; breadth --^ ; breadth of the abdomen ^\ ; length of 

 a posterior leg ^ ; length of a leg of the second pair -j'g^. 



