SYNOPSIS. 
9 
line : each cluster is covered more or less completely by a linear 
lateral involucre. 
Genus^ Notolepeum. Mid vein of pinnules present, lateral 
veins alternate branched, branches anastomosing among them- 
selves and with the branches of the next lateral vein : clusters 
of capsules on the first anterior branch of each lateral vein, and 
all of them directed towards the apex of pinnule, except in 
the first lateral veins, both branches of which bear clusters, the 
anterior cluster directed as usual, but the posterior towards the 
midrib of the frond, these are therefore placed back to back ; 
each cluster is accompanied by a narrow and nearly erect invo- 
lucre occupying the same position with regard to the capsules 
as that of a true Asplenium : the back of the frond is densely 
clothed with pointed overlapping scales. 
Observation. — This genus has long been noticed as distinct, 
but I have seen no description in which the characters are cor- 
rectly given. The venation, as well as the position and direc- 
tion of the capsules, are shown at p. 301. A new name seemed 
needful ; the names of Scolopendriiim, Grammitis and Gym- 
nogramma.) successively employed, have been severally restricted 
to very different genera, and that of Ceterach seems objection- 
able as belonging of right to the species. 
1. No. Ceterach, fig. p. 293 (as Ceterach officinarum). As- 
plenium Ceterach, Linneus^ Sp. PL 1538. Scolopendrium 
Ceterach, Sm. Eng. Flor. iv. 302. Ceterach officinarum, 
Bab. Man. 389. Hook. Br. FI. 436. 
Genus Phyllitis. Lateral veins twice or thrice bifurcate, free 
at the extremity, capsules in linear series upon the anterior and 
posterior branches, on the anterior directed towards the apex 
of the frond, on posterior towards its base, always in pairs, 
i. e., when the anterior branch of a lateral vein bears a line of 
capsules the posterior branch on the lateral vein next before it 
also bears a line of capsules corresponding in length, and the 
two lines or series form a cohfluent mass of capsules covered by 
two involucres which face each other, and even in an early stage 
of growth overlap and appear united. 
Ohservaiion. — The name Phyllitis was employed by Pay 
and other eminent botanists of the ante-Linnean era, but 1 be- 
