XL 



WOODS I A 



more roots. There are no accessory strands. Such characters accord with the 

 suggested relation to the Cyatheaceae (see Schlumberger, I.e. Fig. 14, [-3). 

 But more distinctive features are yielded by the sorus, the mature characters 

 of which are seen in Fig. 646, B, C, E. Each sorus of JVoodsia is seated on 



Fig. 646. A—E= Woodsia R. Br. A= W. polystichoidesY.2X., leaf: B= W. elougata Hook., part of 

 fertile leaf with sori : C= W. obtusa Torr, sorus : D, E= W. ilvensis (L.) R.Br.: Z) = leaf : i5 = sorus 

 with indusium, all sporangia but two removed. F — H= Hypoder7-is Brownii ]. Sm. : i^= habit : 

 C = part of a leaf, with venation and sori: H—%ox\x% and indusium seen from the side. (i>, G, H 

 after Hooker: C after Bauer: D, Rafter Luerssen : A, i^ after Diels : Ixoxa. Natilrl. Pflanzenfain) 



