188 PROCEEDINGS OF THE AMERICAN ACADEMY 



freely to be accepted. The species may be most conveniently and 

 naturally arranged under three subgenera, as below.* 



* MADIA Molina. 

 § 1. Madaeia. [Madaria DC. & Anisocarpus Nutt.) Ligulag conspicuse, exsertas, 

 plurimfe : flores disci plurimi, aut omnes aut centrales steriles, corollis pubes- 

 centibus. 



* Aclienia seu ovaria disci pappo tenui fimbriato-paleolato vel plumoso superata. 

 — Anisocarpus Nutt. 



1. M. Ndttallii Gray. Hirsuta, gracilis, 1-2-pedalis ; f oliis caulinis plerisquo 

 oppositis denticulis seu dentibus gracilibus SEepe instructis ; capitulis mediocribus 

 longe tenuiter pedunculatis ; iuvolucri squamis breviter apiculatis ; ligiilis majus- 

 culis ; acheniis radii obovato-falcatis lateribus planis enerviis (ovariis) disci sterili- 

 bus, pappo brevi. — Proc. Am. Acad. 8, p. 391. Anisocarpus madioides Nutb. 



2. M. BoLANDERi Gray, 1. c. Villoso-hirsuta, 2-4-pedalis ; foliis plerisque 

 alt-ernis, inferioribus elongatis ; capitulis majoribus racemosis ; involucri squamis 

 (modo subsequentis) ultra partem fructiferam lineari-appendiculatis ; paleis re- 

 ceptaculi linearibus distinctis ; ligulis breviusculis ; acheniis (etiam radii parce 

 hirtellis) elongatis, radii lanceolato-falcatis faciebus 1-2-nervatis ; disci exteri- 

 oribus ut videtur fertilibus ; pappo e paleolis setiformibus barbellato-plumosis 

 inaequalibus corolla, pauUo bi'eAiore. — Anisocarpus Bolanderi Gray, Proc. Am. 

 Acad. 7, p. 360. — The ray-akenes, in no. 499 of the distribution of Kellogg 

 and Harford, also show a rudimentary pappus ? 



* * Achenia seu ovaria omnia calva. — Madaria DC. 



3. M. ELEGANS Don, Bot. Reg. 1. 1458. Spithamsea ad tripedalem ; involucri 

 squamis lineari-appendiculatis ; ligulis (in majoribus 10-15, in depauperatis 5-9) 

 elongatis aut luteis concoloribus aut basi atrorubris, lobulis angustis ; recepta- 

 culo convexo hirto-fimbrillifero ; ovariis disci inanibus ; acheniis radii oblique 

 obovatis, areola epigyna depressa. — Madaria elegans &, M. corymbosa DC. The 

 figure of M. corymbosa in Endlicher's Iconographia is from a dried specimen, with 

 rays poorly developed. 



4. M. RADiATA Kellogg, Proc. Calif. Acad. 4, p. 190. Bi-tripedalis, viscido- 

 pubescens et glandulosa (nee hispida) ; involucri squamis breviter appendiculatis ; 

 liguHs 9-20 aureis lato-oblongis obtuse tridentatis ; receptaculo piano subglabro ; 

 floribus exterioribus disci fertilibus ; acheniis radii anguste obovato-falcatis 

 rostello brevissimo recurvo apiculatis, disci rectiusculis subclavatis faciebus an- 

 gulatis, areola epigyna depressa, centralibus inanibus. — Ligules half an inch 

 long, abrupt at base, the expanded head, including these, sometimes two inches 

 in diameter. A plant was raised in the Cambridge Botanic Garden, in 1873, 

 but no good seed was saved. 



§ 2. EuMADiA. {Madia & Amida Torr. & Gray. Madia, Madariopsis, Madorella, 

 & Amida Nutt.) Ligulte breves inconspicuae, 12-1, quandoque nullse : disci 

 flores plurimi vel pauci, omnes fertiles ; corollfe tubo pubescente : recepta- 

 culum planum, ambitu excepto nudum glabrum. 



5. M. SATivA Molina. — California is perhaps the birthplace of this species, to 

 which must belong, as mere varieties, var. congesta, M. capitata Nutt., the com- 



