164 



ramosa. Color florum albus vel pallide purpureus. 



Corolla glabra; tubo semiunciali superne inflate calyce 



dimidio longiore. 

 This and the following species are remarkable in having 

 the leaves persistent and becoming gradually more and more 

 spinescent, till, at length, from the new leaves springing up 

 from their axils, they form, as it were, stipulary spines. 



10. Verbena erinacea, {Gill, et Hook.); fruticosa, humilis, 

 csespitosa, foliis densis opposito-connatis acerosis-ciliatis 

 strictis pungentibus demum elongatis spinescentibus, 

 capitulis paucifloris inter folia immersis. (Tab. XLVIII.) 



Hab. In summum fere jugum montium " Uspallata," provin- 

 cial Mendozae: alt. 10,000 ped. 



Radix crassa, lignosa. Tota planta spinosissima. Capitula 

 sessilia, immersa, bi-triflora, versus apicem ramorum. 

 BractecB ovato-lanceolatae, mucronata?, calyce elongato 

 tubuloso striato, hirsutiusculo, dentibus pungentibus, 

 quadruple breviores. Corolla calyce subdimidio longiore. 



Figs. 1, 2, Leaves. Fig. 3, Flower and bractea. Fig. 4, 

 Stamens. Fig. 5, Pistil: — magnified. 



-{- -H- Spi7ice foliis distinctce. 



11. y crhena seriphioides, {Gill, et Hook.); fruticosa, ramvdis 

 brevissimis, foliis densissimis connatis ovato-triquetris 

 crassis carinatis superne canaliculatis obtusis glabris, 

 spinis oppositis connatis lato-subulatis subfoliaceis ciliatis 

 demum elongatis rigidissimis integris trifidisve, floribus 

 subsolitariis. 



Hab. In provincia meridionali Mendozae, usque ad flumen 

 " Atuel:" alt. 3000 ped. 



Tri-quadripedalis, ramosa; ramis brevibus numerosis. Folia 

 vix duas lineas longa, glabra. Flores ex apicibus ramu- 

 lorum. Bractea ovata. Calyx tubulosus, angulatus. 

 Habitus generis Seiiphii. 



Tlie branches of this curious plant always proceed from 



