tee A SYNOPSIS OF THE GENUS SELAGINELLA, 
of the spike. Nearly always (and I am quite unable to see any 
reason for this, and should much like to have it explained) the 
er br he maller and m 
Eeeniing leaves. Tat the Soe of Selaginellas Tee constituting 
the subgenus for which I have used Palisot Beauvois’ name of 
Btachofynandeunt) we have distichous dimorphic leaves, but a 
square fruit-spike, with bracts of uniform shape. The genus is 
concentrated in the tropical zone, and has its head- as erlang in 
Tropical America. Only two species extend their range into 
Europe, and the Selaginellas of the Cape, Temperate Australia, ad 
South ree pee are neither numerous nor re marka ble. 
In the New World and the Old World thie species are 5 ante ely 
different, with ut one exception amongst the distichous-leaved 
tropical species, S. flabellata, and two of - multifarious-leaved 
species, S. rupestris and spinulosa, both of which are character- 
istically temperate types. It is very r daely ast any of the tropical 
species is found in more than one of the three continents, but 
it will b n that three out of the four subgenera and most of 
the subordinate groups are sanseanld alike in America, ga and 
Africa. 
1. Seacineta (P. B.), Spring.* 
orangia minute, orbicular, laterally jae aang membranous, 
form a 
sages gee dam slitting across the top of the broad diameter, con- 
taining numerous dust-like microspores. Baceepormnele har 3 
also 2- tric, ee four or fewer macrospores.—Hab tirely 
of os ena taey which it differs by its dimorphic nee an 
f the species small and fugacious, resembling 
Fassia, “ith ook more than two vascular bundles on the main 
stems. Stems copiously branched, the ultimate branching usually 
flabellato- Lepiana prelng suberect, sarmentose or scandent, 
with the root-fibres ) ase, or in the trailing species 
extending ge the upper rs: in shape more or less dis tinctly 
tral vein, usually tetrastichous and dimorphous and more or 
oe. oblique, the two rowst of the lower Fene larger and more 
iat 
* For further information see Spring 8 elaborate Meuse in vol. 24 of the 
: Memoirs of the yal Academy of Belgiu Page — Greville’s “ Sage 
ration,” in Hoo es otanical Misce any vol. i ol, O04; 
A. Braun's papers in t the el of tar Berlin Gren ree sais that reprinted 
in Ann. Se. Nat., 4th series, vol. 13, p. 54); Trian d Planchon’s ‘ Cryptogam 
of New Granada ;’ Kuhn's ‘ Fi ices sar AA } reir in ' Monatsbericht der K. 
Preuss. Akad.,’ April, 1865, pp. 185—209. 
+ Spring eee ea in the dimorphic-leaved species between folia synedra, 
in whe h the leaves are inserted on the angles of the stem, and folia cathedra, 
in which they are se Pabrer on its faces, 
