OF ARTS AND SCIENCES. 393 



specimens go) solely to an excessive proliferation of the margin. 

 Fries (Index Dillenianus, in Lich. Eur. p. 464) has referred the Dil- 

 lenian lichen to C. verticillaris, Raddi ; and Nylander (Syn. p. 192) 

 takes the same view : but the last-named plant possesses true scyphi' 

 which are proliferous from the centre, and the fringe-like extension of 

 the margins of these scyphi differs entirely from the crest of dissected 

 squamules which borders the axils (as fully described and figui-ed by 

 Dillenius) of C. Dillemana. C stenophylla, Nyl. 1. c, was founded 

 on the first-received, smaller specimens of our a, which were on several 

 accounts puzzling, and scarcely to be referred to any known species ; 

 but these are now fully explained by Mr. "Wright's further collections, 

 and the correctness of Floerke's opinion as to the Dillenian plant, if I 

 mistake not, sufficiently established. The species is worthy to be 

 adorned with the name of the illusti-ious author of the Historia Mus- 

 corum. 



Cladonia htpoxantha, sp. nov. : thallo parvulo ctespitoso sub- 

 foliaceo ; foliolis lineari-angustatis elongatis ramoso-multifidis margine 

 crenulatis supra viridi-stramineis subtus fusco-aurantiis podetia turbi- 

 nato-cylindi'ica cartilagineo-corticata verrucoso-rugulosa scyphis conca- 

 vis margine subradiatis aut obliteratis apotheciis coccineis proferentibus. 

 On trees in dense woods, Monte Verde, island of Cuba, Mr. Wright. 

 Folioles (scarcely exceeding half an inch in length, the podetia being 

 about a quarter) palmately or pinnately many-cleft; the elongated, 

 branched, plano-convex or flattish divisions finely ci'enulate ; greenish- 

 glaucescent, or, at length, straw-colored above, and beneath convex, 

 or at the base teretish, and brownish-orange, with white edges. Pode- 

 tia short, rather slender, subturbinate, verrucose-rugulose, the scyphi 

 at length sparingly radiated, or obliterated. Apothecia scarlet. Foli- 

 oles comparable rather with the dissected squamules of G. squamosa, 

 than with those of G. alcicornis ; and it is possible that the lichen may 

 be rather a macrophylline form of some species (unknown as yet as to 

 Cuba, or, I think, Tropical America) analogous to G. cornucopioides in 

 Northern regions, than an analogue of the typically macrophylline spe- 

 cies of the glaucescent series. Epiphylline forms, with reduced foli- 

 oles, also occur, and these suggest similar ones of C. cornucopioides. 

 But the characters of the plant are too striking not to require separate 

 notice. Genomyce corallifera, Kunz. msc. in Herb. Berol., from Suri- 

 nam (Weigelt, 1827), is very probably a state, with better developed 

 podetia, and reduced or squamulose, convex folioles, of the present ; 



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