OF ARTS AND SCIENCES. 137 



paleaceo-papposis ; receptaculo convexo. — Hawaii, alt. 6,300-12,000 

 feet. 



2. A. MACROCEPHALU5I (Gray in Proceed. Amer. Acad. 2, p. 160) : 

 capitulo sesqui-bipollicari ; ligulis 20 -30 brevibus ; styli fl. disci ramis 

 cono acuto superatis ; pappo nisi coronula brevissima disciformi nullo ; 

 receptaculo conico. — Maui, above 9,000 feet. 



Abrotanella (Ceratella) submarginata (sp. nov.) : pulvinato- 

 ca^spitosa ; foliis crebris linearibus e basi erecta patentibus sursum leviter 

 calloso-marginatis truncato-obtusis vel retusis ; capitulis solitariis sub- 

 sessilibus paucifloris ; iuvolucri squamis subuninerviis ; acheniis obsolete 

 3 - 4-nervatis angulatisve inferne hirtellis pappo coroniformi et pauci- 

 aristulato vel dentato superatis. — Orange Harbor, Fuegia. — In foli- 

 age nearly intermediate between A. emarginata and the following 

 species, in general appearance very like A. ( Ceratella, Hook, f.) rosu- 

 lata, but the leaves smaller and narrower. Heads and flowers nearly 

 as in A. emarginata, but with a rather conspicuous pappus, consisting 

 of a thin and scarious coronula, two to four teeth of which are com- 

 monly extended into short awns. — Nothing is less reliable, at least 

 generically, than distinctions founded upon the presence, degree of de- 

 velopment, or absence of a paleaceous, coroniform, or other reduced 

 kind of pappus. Dr. Hooker will not be surprised that this and the 

 following species demand the reduction of his Ceratella, Trineuron, 

 and therefore Scleroleima, to Abrotanella. 



Abrotanella (Ceratella) linearifolia (sp. nov.) : laxe csespi- 

 tosa ; foliis linearibus seu lineari-subspathulatis immarginatis patulis, 

 supremis capitulum pedunculatum adsequantibus ; involucri squamis 

 ovalibus sub-2 - 3-nervatis ; floribus foemineis 2-3, hermaphroditis 

 6-8 stylo pi. m. bifido, omnibus siepissime fertilibus ; acheniis glaber- 

 rimis elongato-obovatis 4-costatis apice subcontractis pappo obscure 

 cupulato truncato nunc sub-4-dentato nunc plane 4-aristulato superatis. 

 — Orange Harbor, Fuegia. — With the aspect and foliage (although 

 on a rather smaller scale) of ^. spathulata (^Trineuron, Hook, f) this 

 has the floral characters of A. ( Ceratella) rosulata, except that the 

 flowers are all fertile ; and as to the pappus, it is intermediate between 

 Ceratella and Scleroleima. 



Artemisia australis. Less. Frutex ! 



Var. a. Eschscholtziana: foliis adultis subtus canescentibus supra 

 glabratis, lobis planis saspius parce incisis. — Oahu and Kauai. 

 VOL. V. 18 



