448 DESCRIPTIONS OF NEW SPECIES 



APPENDIX. 



Subtribe Hyoseride^. (After Hyoseris.) 



*CALODONTA. 



Capitulum many-flowered. Involucrum imbricate in nearly a simple series^ 

 the sepals linear, subcaliculate, or bracteolate. Receptacle naked, convex. 

 Achenium turbinate, cylindric, smooth, slightly striate. Pappus of about 

 ten to twelve entire, slender bristles, dilated at base, with short setse 

 interposed between them. — A perennial, evergreen plant of the Azores, 

 with oval, amplexicaule, pinnately nerved, elegant, incisely dentate, smooth 

 leaves. Flowers subcorymbose, pedicellate, rather large and yellow. — (The 

 name alludes to the elegant toothing of the leaves.) 



Calodonta *^^onca. 



Hab. In the Island of Fayal; in the Caldera and ravines adjoining. Root perennial, sending 

 up several subdecumbent stems, about a foot long. Leaves broadish-oval and acute, amplexicaule, 

 smooth and somewhat lucid, deeply and very elegantly serrated, almost like the leaves of a Holly, 

 but with the serratures more numerous. Stem pubescent, somewhat tomentose. Branches 

 spreading, one or two-flowered, the flowers terminal and fastigiate, in three or five, forming a sort 

 of loose corymb. Involucrum nearly smooth, sepals about fifteen, linear-lanceolate, nearly all 

 equal; bractes subulate, at the summit of the pedicels, and also forming a caliculum. Rays longer 

 than the involucrum, five-toothed, the tube hirsute. Style and stigma exserted, nearly smooth and 

 very slender. Achenium small, pale, testaceous, smooth, with about five broad, and almost even 

 striatures. Pappus more than twice the length of the achenium; the hairs almost perfectly simple, 

 dilated at the base, the dilated portion very short and somewhat lacerate: between each hair are 

 two or three minute ones, appearing like an outer crown of pappus, but the hairs of which it con- 

 sists are alternately intercalated and not external. 



