SYNOPSIS OP THE GENERA OP PERNS
E N U M E R A T E D IN T H I S W O RK .
The following is Presl’s arran g emen t of F erns, the most M l an d complete th a t h a s yet been published,
an d by which those Subscribers, who wish to do so, can an-ango the Plates' an d Descriptions of the
present Work.
OKD, I. F IL IC E S , Presl,
(w h o howeve r excludes th e H ym e n o p h y llo id T r ib e , w h ic h
are here intro du ced .)
S U B O R D . I . H E L IC O G Y R A T Æ , B em h.
TRIBE I. GLEICIIENIACEÆ, K u n z e
1.* Gleichenia, Sm . T a b . X L I . A .
2. Do. {Calymella, P r.) T ab. X L L B.
3. Platyzoma, B r . T ab. X L I. C.
4. Mertensia, W illd . T ab. X X X IX .
5. Sticherus, P r .
( A Genus u n k n o w n to me, as i t is to Pres l, founded
howeve r h y th a t a u th o r on th e M e rte n sia loevigata, W illd . ,
and Gleichenia lanig era, D o n ; and said to d iffe r from M e r tensia
b y th e so ri be ing arranged in a double series.)
TRIBE 11. CYATHEACEÆ, B r .
6. Cyathea, iSm. T ab. X X I I I .
Schizocsena, J . Sm . T ab. II.
7. Disphenia, P r .
(T h is appears to be th e tru e Cyathea arhorea, w ith th e
receptacle o f th e sporangia s p lit in age, o r from some othe r
cause.)
8. Cnemidaria, P r . T ab. IV.
9. Hemitelia, P r . B r . (in p a rt). T ab. X L I I . A.
* T h e Nos. before th e Genera correspond w ith th e Nos. iu
Presl’ s “ Ten tame n Pte rid o g ra p h i® .”
10. Trochopteris, P r . T a b . X X X IV .
11. Metaxya, P r . ’ T ab. X L I I . B.
12. Alsophila, B r . T a b s . IX , X X I.
Gymnosphæra, B l . T a b . C.
13. Matonia, B r .
(T h is assuredly does n o t ha rmo nize w ith th is trib e . I t
belongs ra th e r to  s p id iarioe ; w h ic h see.)
S U B O R D . I I . C A T H E T O G Y R A T Æ , B e rn h .
COHORS I . H YM EN O rH O RÆ , P r .
TRIBE I. PERANEMACEÆ, Pr.
14. Peranema, D o n , T ab. X X I I .
Diacalpe, B l . T a b . X C IX .
15. Physematium, K a u lf.
(T h is is considered to be illu s tra te d b y Woodsia, B r . T a b .
C X IX , and b y Hymenocystis, M e y . T a b . I I I . )
Hypoderris, B r . J . Sm. T a b . I.
16. Thyrsopteris, K ze . T a b . X L IV . A.
17. Cibotium, K a u lf.
(T h is w i ll be fo un d, to ge the r w ith ' Thyrsopteris and
D e p a ria , H o o k , e t G re v ., in Dicksoniaceoe.)
TRIBE II. ASPIDIACEÆ, P r .
SECT. I , NEPHRODIARIÆ, P r .
18. Lastrea, P r . T ab. X LV . A.
19. Oleandra, Cav. T ab; XLV. B.
20. Ne])hrolepis,5cAoii,TABs.XXV,XLVIIL A.
21. Nephrodium, Schott, T ab- X L V I I I , B.