Sep. Rhodosperme^. Fain. Ceramiocea.. 



Plate CCXXI. 



PTILOTA? HANNAFORDI, //«m 



Gen. Char. Frond compressed or two-edged, distichous, pectinato-piii- 

 nate, inarticulate, with an articulate monosiphonous axis; the pin- 

 nules sometimes articulate. Fructification: 1, m\o\\xcxdXQ favella, 

 containing numerous angular spores; 2, tetraspores attached to the 

 pinnules, sessile or stalked, solitary or glomerulate, tripartite. — 

 Ptilota {Ag^, from irTLKooTO'i, pinnated. 



Frons compressa v. anceps, disticha, pectinato-pinnata, corticata, axi articulato 

 monosiphonio percursa ; pinnulis sfppius corticatis, nunc pellucide artmdatis. 

 Fruct. : l,/avell(S involucrata sporas numerosas angidatas foventes ; 2, teira- 

 sporce ad pinmdas sessiles v. pedicellatce, sparsce v. glomerulata:, triangule 

 divisce. 



Ptilota? Eannafordi ; frond terete, velvety, irregularly bipinnately 

 branched; branches unequal, alternate, closely set with minute, 

 squarrose, subbipinnate pinnre; pinnae articulate, alternate, opposed 

 by 1-2 small ramuli, distichously or 3-4-stichously bipinnate, the 

 ultimate pinnules subulate and recurved, articulate; tetraspores glo- 

 bose, subsessile on the ultimate pinnules. 

 P. Hannafordi ; fronde tereti velutina vage hipinnatim ramosa ; ramis inaquali- 

 bits alternis pinnis minimis squarrosis creherrime 07iustis ; pinnis articulatis 

 alternis ramnlis pusillis lis oppositis di-tri-tetrastiche bipinnatis, jnnnulis 

 siibulatis recurvis articulatis, tetrasporis glohosis ad latera pinmdaruni sid- 

 sessilibus. 

 Wrangelia? squarrulosa, Harv. Alg. Austr. Exsic. n. 266. 



Hab. Port Pairy, W. H. IL, 1855. Lady Bay, 3Ir. Hannaford, 1857. 

 Warnambool, H. Watts, 1859 {n. 26). 



Geogr. Distr. South coast of Austraha. Eare. 



Descr. Root a disc. Frond 4-8 inches high, 3-4 in the expansion of the 

 branches, having a percurrent stem and distichous, lateral, unequal, spread- 

 ing or horizontal, simple or laxly-pinnated brandies. The stem and all 

 the larger and older branches are covered with a velvet-like pile of minute 

 jointed hairs ; only the younger branches are glabrous. At first the whole 

 frond, and afterwards the branches only, are densely set with minute pinnaj 

 1-1 1 lines long and closely placed, alternating with each otiier, and each 

 opposed to 2-3 minute abortive pinnae or branchlets. The /;«?«« are arti- 

 culated and oppositely bipinnate, or whorlcd with ternate or quaternate 

 pinnules ; the pinnules are patent or recurved, and sharp-pointed. All the 

 articulations are short. Favella unknown. Tetraspores globose, ou very 



