Puate 33. 
OPHIOGLOSSUM (§ Opxioprrma) penputum, L. 
Great Pendulous Adder’ s-tongue. 
OruroetossuM (§ Ophioderma) pendulum ; epiphytal; root consisting of stout, 
coarse, fleshy fibres ; fronds carnoso-membranaceous, one to four or five feet 
long, one to two or rarely three inches in diameter, ribbon-shaped, atte- 
nuated at the base, simple and subspathulate or once or twice dichotomous, 
ecostate, the segments very long, linear, subacute; veins internal, anasto- 
mosing, with long narrow subhexangular areoles; peduncles solitary, one 
to three inches long, simple or forked; spikes one or two, linear, three or 
four inches to a span long, pendulous. 
OpntocLossum pendulum. Linn. Sp. Plant. p. 1518. Sw. Syn. Fil. p. 170. 
Wild. Sp. Pl. v.5. p.60. Hook. and Grev. Ic. Fil.t.19.  Grev..and Hook. 
En. Fil. in Hook. Bot. Misc. v. 3. p, 219. Bl. En. Fil. Jav. p. 260 
(§ Ophioderma). 
OpHIoDERMA pendulum. Presi, Suppl. Tent. Pterid. p. 55. 
Has. Chiefly in tropical regions of the Old World; the islands of the Indian 
and Pacific Oceans; found by all botanists and collectors. Mauritius, 
Ceylon, East Australia, Brisbane River, 4/1. Cunningham, and five miles 
from Port Jackson, C. Moore (in Herb. Nostr.). Cultivated in Kew Gardens 
from living plants sent from Sydney by Sir Daniel Cooper, growing among 
decaying fronds of Acrostichum (Platycerium) grande. 
Our living plants of this interesting species of Adder’s-tongue 
were sent to us, with other rare Ferns, from Australia by our 
obliging friend Sir Daniel Cooper. His remarks on this plant, 
in his letter, are very interesting: “The Ophioglossum pendulum 
is a beautiful species. If you can manage to insert a piece into 
the under part of Acrostichum grande; when that Fern has be- 
come well established, it will hang from it like a large green 
beard, and appear to great advantage. I tried to bring a mag- 
nificent specimen of the Acrostichum, from which O. pendulum 
hung down like a mass of beautiful green ribbons, six and seven 
feet long, two feet wide, and eight or nine inches thick, and with 
seedpods six inches long attached to the various leaves; the 
Acrostichum however died, and the leaves (or fronds) of O. pen- 
dulum withered away; but new ones are pushing through the 
surface of the dead Acrostichum.” ‘To the present plant it is 
however impossible to do justice on a Plate of this small size, 
and all we can do is to represent at our fig. ] a specimen on a 
very reduced scale, and at fig. 2 a young fertile plant, which 
SEPTEMBER lst, 1861. 
