* 
HUDSON'S SPLEENWORT. 129 
and the masses, when full grown, are perfectly circular. 
A second form, of pendant growth and larger size, is 
more lance-shaped: the pinne are pinnate: the pin- 
nules stalked, toothed, and somewhat quadrate: the 
ronds often measure a foot in length, and sometimes 
fifteen and even eighteen inches: they usually issue 
from dark holes or crevices, or depend from the roof 
of sea-caves, and the lower pair of pinne are often 
bleached, of small size, weak and imperfect; the sur- 
face of the frond is generally flat. A third form is of 
nearly erect growth, but bends over at the extremity ; 
and the entire frond, together with each individual 
pinnule, possesses such rigid and inflexible convexity 
that it is next to impossible to flatten it by pressure. 
‘The lateral veins are branched, a branch running to 
the extremity of each tooth: the masses of seeds are 
attached near the extremity of the veins, and some- 
_ what alternately, one branch bearing a mass and the 
next being without one: each mass is at first elongate 
: and linear, and covered by a linear white involucre; 
this inyolucre soon disappears, and the masses gene- 
rally become nearly circular and somewhat crowded: 
they are sometimes so large and crowded when ripe 
as to be quite confluent. 
_ The European range of Lanceolatum is very limited. 
It certainly occurs in Sicily, Italy and Portugal, but 
I do not feel certain of other recorded localities. Mr. 
‘Watson informs me that he found it in Fayal, one 
I 
