22 
FILICES JAVANICAE. 
ceptacula globosa, mme oblonga, sat grandia villosa viridia. Sporae 
tetraëdrae , angulis acutis , hvalinae , subflavescentes. 
18. Cyathea crenulata BI. 
(Hook. Spec. Fil. 1. 25. 34.) 
Observ. 6' Walkerae Hook. valde accedit praecipue indusio magno, 
primo faucibus lateralibus regulariter orbicularibus aperto, dein irre- 
gulariter transverse bifido, indusium pileiforme concavum (Hook. 1. 
c. 25.) formanti. 
Descrpt. Truncus arboreus— speciminum herbari liorti bogoriensis e 
Java occidentali et orientali (mnt. Lawu) collectorura. Stipites 0.47 — 
0.63 longi, basi 0.03 erassi, castaneo-badii , ima basi paleacei, primo 
puberuli, dein glabrati, minutissime muriculato-asperuli , supra (in 
sicco) canaliculati ; paleae badio-fuseae adpressae, lineari-lanceolatae , 
in acumen longum subuliforme attenuatae, basi fere 0.002 latae, 0.04 
longae nitidae, margine minute serrulatae, dein deciduae. Frondes 
coriaceae tripinnatifidae graciles oblongae acuminatae, 1.26 longae, 
paulo infra medium 0.63 latae , basin versus paulo, apicem versus valde 
decrescentes. Rhachis supra profunde, ad latus utrumque leviter sul- 
cata, subtus convexa, sed paulo complanata ibique asperula, supra 
dense tomentosa, dein subglabrata nigrescenti-badia (in sicco). Pinnae 
alternae rarae patentissimae bipinnatifidae , ad medium maximae 0.34 
longae, 0.11 latae, oblongae, acutae; rhachis supra sulcata, dense 
ferrugineo-tomentosa , ad latus utrumque anguste sulcata, subtus la- 
tiuscula subcomplanata muriculato-asperula , caeterum giabrata. Ptn- 
niilae alternae profunde pinnatifidae, lineari-lanceolatae acuminatae 
0.05 — 0.08 longae, 0.011 — 0.013 latae, sessiles, a basi apicem versus 
attenuatae; costa supra, uti rhachis, ferrugineo-tomentosa, subtus dense 
paleacea, paleis plus minus deciduis subcalva; paleae fuscae, ovatae 
acutae intermixtae. Laciniae lineares subfalcatae obtusiusculae aut 
obtusae, 0.009 — 0.011 longae, 0.002 latae, in margine reflexo obsolete 
crenulatae , apice subintegerrimae ; costulae supra prominulae glabrae , 
subtus in primis in parte fructifera pariter ac costa paleaceae , in parte 
