FILICES JAVANICAE. 
15 
13. Mesosonis vestitus Hsskl. /3- eïoncjatus. 
Observ. Specimen nostrum valde incompletum , scd autlienticum 
Zollingeri {]\Iertensia vestita Kunz. var. ehugata) in licvb. hrt. bog., a divo 
Zippelio lectuni in montibns Seribn , qui hanc forniam pro vera vestita 
sumsit. 
Descrpt. Plnnarum rami ultimi elongato lanceolati , 016 — 0.18 longi, 
0.03 — 0.04 paleae costarum et rhacliium uti in spee.; laciniae\u\Qii- 
res ad 0.02 longae, 0.002 latae, margine revoluto integrae, apice ob- 
tusae, aut acntiusculae , 2 — 4-dentatae; venae profnndius simj^liciter 
furcatae; costulae magis paleis ciliato-fimbriatis lanatae , dein glabrac. 
Sorl 2 — 4 sporangia gerentcs, magis margini approximati. — Qaod ad 
laciniarum formam aliqnot ad M. glaucwn Hsskl. {Mcrtens'ia Sw. Glei- 
chenia Hook. L c. 4 T. 3. B.) accedit. — Caeternm pariter Gl. jlahel- 
Icitae RBr. Hook. 1. c. 0.15 affinis videtnr, sed utramqne comparare 
haud potui. 
H. CYATHEACEAE. 
nPerhap? ia the Avliole range of the great family of ferns, there is not a gronp more difficitlt of 
•1 acctirate determination, than are the species of this section [EitcyatJiea of Cyathear Hook. Spec. Fil. I. IG. 
14. Cyailiea arhorea Sm. /3. paUlda Hook. 
(Hook. Spec. FiL I. 17. G. jBmicr. et Hook. Gen. Fil. t. 23.) 
Synon. Displienia or'icntdUs Knz. Zoll. Verz. 4G.45.1. Zoll. Herb. 
2538. Cyatheei aenulata Zoll. in Sclied. Iierb., addit. „stipes (an 
truncns?) 23'." 
Observ. Examinavi perplurimos soros reeentes, plerumqne sporan- 
giis destitntos, etsi involnero campanulato-cupnlaeformi membranaceo 
fragili persistenti cinctos , sed in nnllo receptacnlnm bipartitum repe- 
ri ; omnia mihi ovato-snbcvlindrica subexserta obviam venierunt. — Cya- 
iheei crennlata BI. En. 244.1 differt a nostra: fronde coriacea, pimuilis 
lanceolatis, ad costam subtus palcaceis, laciniis fiilcatis, apice obtusis, 
integerrimis , soris 3 — 8 subconflnentibns. Indusioruni strnctura parti- 
culavi band facile confundenda species. 
) 
