Boodle . — Anatomy of the Sehizaeaceae . 379 
figured by Prantl ( 5 81 , Fig. 59 ) for S. pennula, , Sw. The 
radial walls of the pericycle, endodermis and sclerotic layer 
of the cortex correspond, while the walls of the next cortical 
layer, which may consist of twelve cells, do not coincide with 
them. The pericycle therefore appears to be cortical. 
Anemia, habit. 
In Anemia Phyllitidis , Sw., the stem is obliquely ascending, 
the leaf-bases are crowded and leave scarcely any free surface 
to the stem. The roots are borne by the stem in longitudinal 
rows between the leaf-bases, and stick out through the narrow 
fissures left between the latter (Prantl, J 81 , p. 3). The phyllo- 
taxy appears to be f as stated by Prantl. Polystichous 
leaf-arrangement occurs in most species of Anemia , but seven 
species have a creeping rhizome, which bears distichous 
leaves, sometimes distant, on its upper side. These species 
are included by Prantl in the subgenus Aneimiorrhiza 
(. Anemirrkiza , J. Sm. emend.), and the above characters form 
part of the diagnosis of the subgenus. A. mexicana , Klotzsch., 
and A. cuneata , Kze., are examples of this type. 
The leaf in the genus is petiolate, and pinnate, the pinnae 
being nearly entire, pinnately lobed, or again pinnate in their 
basal region. 
Anemia, stem. 
Fig. 16 is a diagram of a transverse section of the stem of 
Anemia Phyllitidis , the vascular tissues or rather their endo- 
dermal sheaths being shown in outline. The structure is 
entirely different from what has been described in the stems 
of Lygodium and Schizaea, and may be called dialystelic, and 
the masses of vascular tissue represent steles, or meristeles, 
or bundles, according to what view one takes of their homo- 
logy and of suitable terminology. In the particular case 
figured two leaf-traces (viz. /. t. and the bundle on the opposite 
side of the stem) are seen on their way in towards the inter- 
rupted vascular ring, which here consists of two parts. These 
latter represent the section of a hollow reticulate vascular 
