TABLE OP GENEEA. 

 Hb. Bef. 



ttf Involucre pateriformfimbriate, calyciform lobed, 

 or sub-globose, membranaceous. 



142. Woodsia, R- r. 1813 [p. c.] 



Physematium, Klfs. 1829. I Hymenocystis, C.A.Mey. 1831. 

 HymenolsBna,a.,Ofe.(1831.) | Perrinia, Hook. 1846. 



(b) Veins reticulated. 



143. Hypoderris, -B. -Br. 1830 [p. ci.] 



Order POLTPODIACE^. Tribe CYATHEINE^E . 

 1. THYBSOPTEBIDE^E. 



144. Thyrsopteris, J&e. 1834 [p. cii.] 



Panicularia, Colla, 1836. 



2. CTATHEJE. 



(a) Involucres complete cup-shaped. 



145. Cyathea, tf*, 1793 [ P . cii.] 



Sphaeropteris, Sernh. 1800. I Notocarpia, Presl, 1836. 

 Disphenia, Presl, 1836. | Schizocama, J. 8m. 1838. 



(b) Involucres half cup-shaped. 



Veins uniting in costal arcs (in some species rarely 

 united.) 



146. HemiteUa, -2. 5r.i8io.' [p.ciu.] 



Cnemidaria, Presl, 1836. I Microstegnus, Presl, 1847. 



Eleutheria, Kze. 1844. Actinophlebia, Presl, 1847. 



Hemistegia, Presl, 1847. | 



** Veins always free. 



147. AmpMcosmia, Gard. 1842. ... . [p. civ.] 



Hymenostegia, J. Sm. (pt.) 1842. 

 Notophoria, Presl, 1847. 



3. AlSOPHILE-ffi!. 

 (a) Veins always uni-soriferous. 



148. Alsophila, -R- Sr. 1810 [ P . cv.] 



Trichopteris, Presl, 1822. Hymenostegia, J. 8m. (pt.) 1842. 



- ="* Trichostegilj-.^m. 1842. 



Chnoophora, Jn/. 1824. 

 Gymnosphaera, ^. 1828. 

 Dicranophlebia, Jfor*. 1828-34. 



Haplophlebia, 3farf. 1828-34. 



Tridiostegia 

 Dichorexia, Presl, 1847. 

 Lophosoria, Presl, 1847. 

 Trichosorus, iteJm. 1848. 



(b) Veins frequently li-tri-soriferous. 



149. Amphidesmium, <&&>, 1834. ... [p. 



Trichopteris, Parker, MS. : \ Metaxya, Pretl, 1836. 

 Sic. et Or. 1829. 



