(slioriiKu, Dictyotacoa;, Dilopiuis. 285 



'lici' siirgeiites siupe siiiiplicis.siiiuc et Iont,'issi- 

 |i;ir(i' (lichot(Jiu;u, se;.(iii('iitis vix 2 mm. latis, 

 ^is. Aii lnic Dictijota siiDplr.r Kiictz. Tab. Phyc. 

 iiiii IViiiulis interiorciii l:uitiiiii ituabus seriebus 

 II pra!bens, pertinet?. 

 Dilophus Gunnianus .1. Aj,'. Till Algernos System. V, p. loii, Anal. 405 

 ciiiil. I, p. S7, Dirhjola nunor Harv. iioii Sund. — l'"roniI(^ basi 

 stuposa, anguste lin<3ari, decdiiiiiositii-dichdtiuiri.siiiiibiis p;itiMitiliiis, 

 segnientis margine integerrlinis liic, llli,^ tnrtis, tcruiiihdibiis siiii- 

 divergentiiuis attenuatis obtnsiusculis, cellnlis intorioriijus frondis 

 iiiediis seciis 1: series inargini vicinis per duis series dispositis, 

 (•ortic;iIiims plnrimis siib(iuadraticis diametro ;o(|ualibus aliis sos- 

 (|iiiloiigioriiius; celliilis fructiferis fere secus lineain regionem nie- 

 (liaiii frondis occu[);i,iitem dispositis. 



Ilab. ad Novaiii Holbiiidiain anstralem (Cuhdie) et Tasmaniam 

 (R. (iiiNN, ,1. .V(i.\Ki)ji/. — Habitiis fere omnino Dicti/otiv FascinUv 

 at color niagis rufescens ct structura diversa. Cellulte interiores 

 in sectione transversali frondis adparent minutie, rotundato-angu- 

 l;it;e et invicem ferc opposit», series 4-6 efficientes. Segmenta ter- 

 iiiiii;ili;i nunc magis obtusa et patentiora, nunc magis iicuminata. 

 Siilist;iiitia subcori;icea. color ciistaneus, in pUinta exsiccata fere ni- 



Dilophus fasciculatus .1. Ag. Aii;d. ;dgol. cout. I. p. S7. — Fronde 40t3 

 li;isi stuposa, anguste lineari, decomposito-dichotoma, ramis priii- 

 cipiilibus quasi fasciculos distinctos eodem modo decoinpositos for- 

 luantibiis, siuubus patentibus, seginentis s;epe sparsim tortis, ter- 

 uiiiuUibus piitentibus subiicuminiitis, cellulis iuteriorlbus pluriiuis 

 per 4 series dispositis, cortic;ilibus rectangularibus siio diametro 

 2-4-plo longioribus ; cellulis fructiferis line;im longitudinalem ;in- 

 gustiorem frondis medise occupantibus. 



Hab. ad onis austnxles Novse Hollandi;e et Tiismanias. — A Dilo- 

 p/io (runniano J. Ag., cui proxima hiBC species videtur, differt diver- 

 sitiite (piadam ramiticationis, cellulis corticalibus conspicue longiori- 

 i)us. lliuui uuijores <|uasi per se fasciculos distinctos efficiuut. Frous 

 l-'i milliiu. hita; segmenta inferiora 2 cm. circiter distantia, supe- 

 riora duplo breviora, omuia tenuiora et s;epe sat attenuata. Color 

 frondis fusceseens, substantia membran;icea. Celiulas fructus sistentes 

 uunc in pustulis supra frondem elevatis obloiigis, nunc in prolili- 

 cationibus evolutaj, obovatse, numerosffi (us^iue ;id 30 insiinul co;i;- 

 cervataj). 



