Bibliographical Notices. 



419 



lineari e margine bipinnatim prolifera, pinnis lineari-lanceolatis nervosis 

 patenti-erectis. Cum ic. 

 Prope Valparaiso. 



Delesseria phylloloma, Mont. Fronde tenuissima, avenia oblonga e margine 

 prolifera, ramentis subpedicellatis basi rotundatis, apice vage fissis, lobis 

 emarginatis, soris in disco frondis sparsis. 

 Prope Callao. 



Delesseria peruviana, Mont. Fronde elongata basi cimeata nervosa bis bi- 

 fida,, segmentis lanceolatis acutis, soris in disco frondis sparsis. 

 Ad Caflao. 



Acropeltis, Mont., nov. gen. 



Char. Essent. Semina pyriformia in apotheciis clypeiformibus terminali- 

 bus nidulantia. 



Char. Nat. Radix scutulata. Caulis filiformis in frondem mox explanatus. 

 Frons linearis eandem latitudinem ubique servans margine denticulata 

 vel ciliata, apice modd truncata, et turn e medio truncaturae prolifera, 

 modorotundato-ampliata, speciem ferens peltse cuigongyli immersi. Fruc- 

 ius : semina pyriformj-clavata prirnum omnino intra frondis substantiam 

 immersa, tandem erumpentia prominula, et scutam orbiculatam in quam 

 frondes desinunt, scabrosulam reddentia. 



Acropeltis chilensis, Mont. Fronde lineari plana subsirnplici vel basi fill— 

 formi tantum ramosa, margine denticulata, apice truncato interdum pro- 

 lifera, peltis gongyliferis terminalibus. 



Alg,e OlivacejE, J. Ag. 



Desmarestia peruviana, Mont. Fronde plana, membranacea ecortata, mar- 

 gine dentata tripinnata, pinnis pinnulisque oppositis lanceolatis. 

 Juxta Callao. 



Out of sixty-six species of Alga collected during the voyage of 

 Orbigny, M. Montagne remarks, twenty are quite new. The Flo- 

 ridece predominate, which accords with the observation of Lamou- 

 roux, Agardh and Bory, and is confirmed by the younger Agardh, 

 that the more we approach the equator the more rose-coloured Alga 

 prevail. The Fucoidea are very few, but the number of species is 

 in a manner compensated by the size which they attain, as for ex- 

 ample Durvillaa utilis and the species of the genus Macrocystis. 

 There is but one species in the Polar seas which can for a moment 

 be compared with them. 



Hypoxyla, DeC. 



SpJueria portentosa* , Mont. Lignosa simplex elongato-linguiformis, atra 

 undique peritheciis superficialibus ovato-globosis crassis papillatis tecta ; 

 stipite glabro. 



Ad ligna Cocbabamba in Bolivia. 



Fungi, L. Juss. Fr. 

 Geaster {Plecostoma) ambiguus, Mont. Peridio exteriori simplici multifido 

 rigescente subinvoluto, interiori sessili ore piano- conico plicato-striato. 

 Ad terram in provincia Bolivia de Chiquitos. 



* This and some other species have been published in late numbers of 

 1 Ann. d. 8c. Nat.' since the text from whence the characters are taken was 

 printed. 



