GLKICHKNIA. 9 



24. G. Mathensii, Hook. ; small (1| Coot) sli))cs terete or 

 nearly so glabrous, lioiul twice dichotoiiious ])artially leaiy 

 below the upper lork ami chielly on one side, branches lan- 

 ceolate I'alcate ])innatiiid, segments linear obtuse jnitent but 

 pointing ui)wards subglaucous beneath and clothed with deci- 

 duous cobwebby down, rachis subpaleaceous, capsules 3 — 4. 

 ('J'ab. VU. B.)— M. lurcata, Mart, el Galeot. Fil. Mex.p. 17. 

 — jS. major ; })inna3 larger. 



Hab. Peru, Mathtvs. Savannas and marshes, Cordillera of Oaxaca, 

 Mexico, at an elevation of 7500 feet above the level of the sea, Galeotti. — 

 fi. Dominica, Dr. Imray. — This may be a young state of G. ])ubescens, but 

 the fructilication is perfect. The fronds both in the Mexican and Peruvian 

 specimens are small, including the stipes and the creeping caudex scarcely 

 exceeding 1| foot high: but I rest the chief distinction on the leafy por- 

 tion extending so little way down from the apex: or, to make mysell' per- 

 haps more intelligible, the Irond itself is only twice forked, in which respect 

 it differs greatly from the ])receding species. 



25. G. [Mcrle))fiia)farinosa, Kaulf.; "frond pinnate, gem- 

 ma! abortive, pinnte (branches) petiolate geminate lanceolate 

 deeply i)innatifjd, segments linear obtuse beneath ochrace- 

 ous-1'arinose, capsules 4, costa beneath and stipes paleaceous." 

 Kuuze, Analect. Pierid. p. 6, t. 3. 



Hab. Trinidud, Sieber. — This i)lant is unknown to me except by Kunze's 

 figure and descrii)tion. I have ])laced it here from its great affinity with 

 my O. Mathcwsii. It is, indeed, owing to its prolifert)us propensity from 

 the axil of the main dichotomy that it becomes, as characterized l)y Kunze, 

 pinnate : so that the frond exactly corresponds with 31. MatJuusU : ami the 

 only difference seems to be that the latter species has the underside clothed 

 with deciduous cobwebby down, the present with an oehry farinaceous sub- 

 stance. 



26. G. OuJt i/hetisis!, Hoo'k.; uj)per part of the stipes much 

 compressed and winged with 2 elevated ciliated lateral lines, 

 frond 3 or 4 times dichotomous lealy, branches lanceolate acu- 

 minate incurved pinnatifid, rachis clothed jjrincipallv at the 

 margin with chally ciliated ferruginous hairs, segments linear 

 horizontal broad at the base tapering towards the point acute 

 loosely cobwebby on the costa and veins beneath, capsules 

 2—4. 



Hal). Byron's Bay, Owhyhcc, Macrae. — AMicd, especially in tlie hairy 

 rachis, to the following species, G. lauffipinuala ; but the pinna-, or ultimate 

 branches, are much shorter and the segments on the lower forkings of the 

 branches are as long as in the ultimate ones. It seems to be a large plant, 

 the branches or iiinnee 2 inches to 2tV inches broad, changing tea dark rusty 

 brown colour in drying. 



27. G. loiKjipiiDiata, Hook.; upper part of the stijxjs much 

 comprijssed hispid at the margins, frond twice dichotomous, 

 branches of the first fork very short with 3 — 4 ])airs of une- 

 qual segments, branches or pmna3 of the upj)er fork 2 — 2^ feet 



