242 Davie.—Comparative List of Fern Pinna-traces , with 
the type of pinna-supply found in them and that made on other grounds by 
some systematists. 
4. In order to make use of the criterion of the type of pinna-supply 
in the Ferns, the lower pinnae of the older leaves must be examined. 
Family. 
Osmundaceae 
Schizaeaceae 
Gleicheniaceae 
Hymenophyllaceae 
Dicksonieae 
Thyrsopterideae 
Cyatheae 
Woodsieae 
(Woodsiinae) 
Marginal Type of 
Pinna-supply. 
Lygodium circinnatum (Bui m.), Sw.; 
L. scandens (L.), Sw. 
Mohi-ia caffrorum (L.), Desv. 
A?ieiviia collina, Raddi; 
A . hirta (L.), Sw. ; 
A. phyllitidis (L.), Sw. ; 
A. rotundifolia , Schrad. 
Loxsoma Cunningkami , R. Br. 
Balantium cuhita (L’Herit.), Klf. ; 
B. coniifolium (Hk.), J. Sm. 
Extra-marginal Type of 
Pinna-supply. 
Todea barbara (L.), Moore. 
Leptopteris Fraseri (Hk. and Grev.), 
Pr. ; 
L. hymenophylloides (A. Rich.), Pr. 
Ostnunda javanica , Bl. ; 
0 . regalis , L. 
Gleichenia circinnata , Sw., var. spe - 
luncae ; 
G.Jlabellata , R. Br.; 
G. rupestris, R. Br. 
Hymenophyllum demissum (Forst.), 
Sw.; 
//. dilatatum (Forst.), Sw. 
Trichomanes elegans , Rich.; 
T. radicans , Sw. 
Balantium stramineiim (Labill.), 
Diels. 
Dicksonia antarctica, Lab.; 
D. fibrosa, Col. 1 
*Cibotium barometz (L.), J. Sm.; 2 
C. regale, Linden; 
C. Schiedei, Schlecht. et Cham. 
C. Wendlandi , Mett., var. Vershaf- 
feltii. 
* Thyrsopteris elegans , Kze. 
*Cyathea mexicana , Schlecht. et 
Cham.; 
*C. pubescens, Mett. 
*Fdemitelia grandifolia (Willd.), 
Spr. 
*Alsophila glauca (Bl.), J. Sm. 
Cystopteris fragilis (L.), Bernh. ; Diacalpe aspidioides, Bl. 
C., montana (Lam.). Bernh. reranema cyatheoides, Don. 
*Hypoderris heteroneuroides , Christ. Woodsia ilvensis (L.), R. Br.; 
W. polystichoides, Eat. 
Acrophorus stipellatus (Wall.), 
Moore. 
1 In Trans. Roy. Soc. Edin., vol. 1 , p. 354, this species was described as having the marginal 
type of pinna-supply. The identification of the material then examined must have been incorrect. 
Properly authenticated material since examined shows this species to have the extra-marginal type of 
pinna-supply. 
2 The species marked with an asterisk are those in which ‘reinforcements’ have been found 
(see pp. 236, 237). 
