THE COMMON HART'S-TONGUE FERN. 195 
more open in the parts, the divisions being deeper cleft with more 
open sinuses, has been obtained by Mr. W. Willison. 
149. lacerato-marginatum (Sim). A dwarf form of laceratum (145), 
about three inches high and two inches across, the apex cleft, blunt, 
inciso-lobate, and somewhat marginate. It is a constant form, and. 
was raised by Mr. Sim of Footscray. 
150. marginato-laceratum (Claph.). A remarkable form raised 
from laceratum (145). Some of its fronds resemble the dwarfer fronds 
of the parent, but are more deeply cleft, while others are split 
down to the costa in a variety of ways, the divisions forming distant 
separated lobes of various size, and altogether irregular in form: 
some being oblong with sinuous margins, some obtusely-wedge- 
shaped, others broader irregular variously cleft and more or less 
multifid-crisped, the parts being all more or less marginate. In 
some fronds the costa is bare to near the top, and the frond then 
becomes fan-shaped, with small narrow unequal divisions. One 
frond when spread flat forms about three parts of a circle of five 
inches diameter, and consists of five wedge-shaped sections divided 
down nearly to the top of the stipes, each section being several 
times deeply cleft, with margins lacerately lobed or toothed. It was 
raised from spores by Mr. A. Clapham. [Plate XCI bis. ] 
151. ramosum (Willd.). This is an old variety, known since 
the time of Plukenet, and one of the most beautiful yet discovered. 
The fronds which are short and dense, consist of a multiplication of 
furcations, the stipites which start singly from the caudex becoming 
ramified like the limbs of a tree, the costa often again branched 
below, and each branch bearing a dense multifid-crisped tuft; the 
apex of the frond is ramified at least two hundred fold, in some 
instances. It is a very old and somewhat rare garden variety; but 
similar plants have recently been found by Mr. C. Jackson, in 
Guernsey, and by the Rev. J. M. Chanter, at Ilfracombe in Devon- 
shire. It is uniformly constant, and reproduces itself by its spores. 
152. ramoso-cristatum (Claph.). This is yet but an undeveloped 
seedling, but appears to be a fine variety. The fronds are ramose, 
the apices of the branches multifid, a portion of the segments being 
cristate and curly, and others forming flat projecting lobes. It has 
been raised by Mr. A. Clapham. - 
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