418 



Bibliographical Notices. 



share the task entrusted to me by D'Orbigny ; M. Montagne has 

 in consequence undertaken the cellular Cryptogams, and M. Decaisne 

 the monopetalous Dicotyledons, and especially the Composite, which 

 are very numerous in the collections." 



Sertum Patagonicum. 

 AlgjE, Roth. 



Nostoc microtis, Montagne. Fronde ininuta, cochleata seu difformi, mar- 

 gine acuto-sinuata, solitaria, caerulea pellucida; filis internis simplicibus, 

 curvato-flexuosis, moniliformibus. 



Ad saxa inundata secus fiumen Rio Negro, faciei pronae inter radices, 

 Riccia; 1 nigrescerdi adhaerens. 



Conferva aculeata*, Mont. Caespite basi stuposo funiformi-ramoso, filis con- 

 stituto setaceis, siccitate nitentibus, radices implexos duplici origine ex- 

 ortos emittentibus, ramosissimis, raniis vagis, vamulisque strictis ascen- 

 dentibus subsecundis fasciculatis, supremis aculeiformibus, articulis cylin- 

 dricis diametro duplo triplove longioribus. Cum icone. 

 Ad infimum refluxus limitem in littore sinus S. Blasii. 



Laminaria ccepestipes, Mont. Radice bulboso, stipite terete in laminam 

 cuneato-oblongam crassam laciniato-multifidam expanso. Cum icone. 

 Durvillcea utilis, Bory, junior? 



Ad insulas Maclovianas, Gaudichaud. Littore Patagonico, D'Orbigny. 

 Littore Chilensi (ad Valparaiso), Bertero. 



Macrocystis Orbigniana, Mont. Caule tereti, foliis lanceolatis undato-ru- 

 gosis margine dentato-ciliatis, vesiculis fusiformibus elongatis. Cum ic. 

 In oris Patagonia?. 



Hepatic^:, Juss. 



Riccia? nigrescens, Mont. Frondibus imbricatis e centro radiantibus nigro- 

 viridibus dichotomis, laciniis expansis obovatis, margine sinuato undulato 

 crispo ascendenti ; sporangiis ? in pagina inferiore elliptico-prominen- 

 tibus. 



Ad terram in ripis fluminis Rio Negro. 



Florulce Boliviensis stripes nova vel minus cognita. 

 Alg^e. 



Lyngbya ferruginea, var. ? Ag. Filis aeruginosis in casspitem viridi-lutescen- 

 tem czeruleumque dense intricatis. 

 Ad littora Peruviana. 



Halymenial Doryphora, Mont. Fronde coriaceo-membranacea, palmato-fissa 

 integerrima, segmentis acutissime lanceolatis, undulato-crispis spiraliter 

 tortis. 



Ad oras Peruvias prope Callao. 



Sphcsrococcus laciniutus, Lyngb. 



var. I, centrocarpus, Mont. Fronde primaria sublanceolata, obtusa e margine 

 prolifera, laciniis cuneatis iterum prolificis ; sporangiis spbaericis in ipso 

 margine vel in processibus marginalibus undique spinulosis seu cristatis. 

 An species? 



Ad oras Peruvianas juxta Callao. 

 Delesseria bipinnatifida, Mont. Fronde tenuissime membranacea, costata, 



* Now named by Montagne Conf. oxyclada, a species from the Cape 

 having been published by Suhr under the name first given. 



