Ser. RnoDOSPERMEiK. Eain. Ci-yptonemiacece. 



Plate CCV. 

 CRYPTONEMIA UNDULATA, 8ond. 



Gen. Char. Frond flat, I'ii^tl, caulescent, proliferous and braiicliedj formed 

 of three strata ; the medullar?/ stratum of longitudinal, slender, 

 closely interwoven filaments ; the intermediate of roundish cells ; the 

 cortical of minute cellules. Fructification: \, simple ya^-e//<g, im- 

 mersed in the substance of the frond ; 2, cruciate tetraspores, col- 

 lected in roundish sori, either under the apices, or in special fruit- 

 leaves. — Cryptonemia (/. Ag.), from KpvTrrw, to hide, and vqixa, a 

 thread ; alluding to the hidden threads of the medullary stratum. 



Frons plana, chartacea, cauleacem, proUfera et ramosa, stratisfere tribus con- 

 texta ; strato viedullari Jilis eloiiyat'is lonrjitudinnUhus temdims dense inter - 

 textis, intermedio celluUs rotundatls majiiscidis, corticali ceilidh minimis con- 

 stante. Fruct. : \,favella'. simplices, infrondemimmersre; 'i,tetraspora cru- 

 ciatim divisce, in soros rotundatos collect(B, soris infra apices ant in sporopliylUs 

 propriis positis. 



Cryptonemia nndulata ; caulescent ; stem dichotomous, winged above, 

 and passing into basally midribbed, broadly linear, forked, curled and 

 bluntly lobulate or subpinnatifid lamiuce; axils very open, apices 

 blunt. 



C. undulata ; caulescens, caule dicJiotomo superne alato et in laminas inferne cos- 

 tatas lato-Unearesfiircatas crisj/atas et hie illic obtuse lobulntas v. subpinna- 

 tifidas abeiinte, axillis omnibus latissimis apicibusqne obtusis. 



Cryptonemia undulata, Sond. in Linn. v. 26. p. 516. 



Cryptonemia luxurians, Ilarv. Alg. Exsic. Austr. n. 402 {non J. J(/.). 



IIab. Brighton beach. Port Phillip, I)r. Mueller, W. H. H. South Aus- 

 tralia, Dr. Curdie. 

 Geogr. Distr. South coast of Australia. 



Descr. Root discoid. Fronds tufted, 4-.5 inches long, and as much or twice 

 as much in the expansion of the sub(hvisions. Stem filiform, very rigid, 

 naked below, then winged, forking once or twice, and each division passing 

 into the midrib of a terminal twice or thrice forked lamina : the midrib 

 growing fainter upwards and disappearing long below the apex. The 

 lamince are l-f incli wide, very much curled, with an undulating margin, 

 and not rarely laterally sinuated into very blunt lobes, sometimes one or 

 two such lobes on a segment, sometimes several, and then alternate. The 

 forkings of the stem and midrib are very wide, often at an obtuse angle, and 

 sometimes greatly divaricated. All the apices are very blunt. No fruit 

 has been seen. Tlie colour when recent is a somewhat pinky briglitiah red. 



