OF ARTS AND SCIENCES. 141 



appendage of the style, and the alveolate receptacle, I was disposed to 

 regard this (as was Dr. Schultz) as the type of a new genus, sustaining 

 to Gynoxys the relation which Werneria does to Senecio. But all these 

 characters break down ; that of the style is inconstant even in the same 

 species ; the closely allied preceding species has a naked receptacle ; 

 and in this the alveoli vary, being sometimes very deep and here and 

 there irregularly extended into scarious fimbrillse, some of them even 

 half the length of the flowers ; while in Dombey's own specimens, in 

 the Parisian herbarium, the receptacle is only moderately alveolate. 



Senecio leucomallus (sp. nov.) : fruticosus, ramosus, undique 

 albo-lanosissimus ; ramis 1 - 3-cephalis ad apicem usque foliosis ; foliis 

 spathulatis integerrimis obtusis planis (denudatis glabratis aveniis) 5 

 capitulis breviter pedunculatis ; involucro lanosissimo, bracteolis lineari- 

 subulatis squamas proprias subsequantibus ; ligulis nullis ; acheniis gla- 

 berrimis. — Var. /5. incisus : caulibus laxis adscendentibus ; foliis pie- 

 risque apice 3 - o-lobatis vel inciso-dentatis. — Orange Harbor, Fuegia. 

 Related to S. Patagonicus, Hook. & Arn., of which >S'. Andersonii, 

 Hook. f. and S. Duyausii, Hombr. & Jacquinot are forms. 



Senecio Websteri, Hook, f., var. subdiscoideus : ramis adscen- 

 dentibus ; foliis flabellatis grosse crenato-dentatis, basi nunc truncata 

 nunc late cuneata ; ligulis paucis parvis tubo brevioribus. — Orange 

 Harbor, Fuegia. 



Senecio Darwinii, Hook. «& Arn., var. eradiatus : pumilus, con- 

 densatus ; foliis parvis ; ligulis nullis. S. Laseguei, Homb. & Jacqui- 

 not? With the preceding. 



Senecio Eightsii, Hook. & Am., in its more luxuriant states 

 shows indications of being only another variety of S. Darwinii. 



Senecio trifurcatus. Less., is stoloniferous, a character not men- 

 tioned in any published description ; but a young stolon is delineated 

 on one specimen in Dr. Hooker's excellent figure. 



Senecio subcandidus (sp. nov.) : hei'baceus vel basi frutescens, 

 laxe arenoso-lanatus ; caule mox glabrato erecto sesquipedali apice 

 corymboso ; foliis membranaceis, caulinis oblongis ovato-subcordatis vel 

 subdeltoideis grosse duplicato-dentatis crenatisve supra glabratis subtus 

 tomentoso-incanis, petiolo saepius alato ; capitulis in corymbo 3-9 longe 

 pedicellatis ; involucro circiter 20-phyllo glabrescente (squamis lineari- 

 bus) basi bracteolis brevibus subulatis parce calyculato ; ligulis elon- 

 gatis ; acheniis sericeo-puberulis. — Ludit foliis sinuatis et, var, minor : 

 caule subaphyllo oligocephalo ; foliis lyrato-pinnatifidis seu pinnatipar- 



