tenerrima rosea, soris majusculis oblongis coccidiisque per frondem sparsis. Nobis in Lond. Journ. Bot. 
vol. iv. p. 254, (Tas. CLXXVII.) 
Has. Hermite Island, Cape Horn; abundant in deep water. 
Radix discus cartilagineus. Stipes gracilis, 4-3 unc. longus, cartilagineus, superne alatus, basin in frondem 
cuneatam abeuns, deinde gradatim evanescens. Frons 8-12 unc. longa v. longior, latitudine varia, lineari-oblonga 
v. late ovato-rotundata, integerrima v. in lacinias fissa, adultior punctis crebriformibus pulcherrime terebrata, apice 
exemplaribus normalibus attenuata, margine integerrima, undulata, plus minusve in lacinias fissa, subavenia v. basi 
solum nervis indistinctis e apice stipitis ortis notata. Sor numerosissimi, per totam frondis paginam sparsi. Sub- 
stantia tenerrima. Color pulcherrime roseus. 
One of the most beautiful of the genus, and probably the southern representative of the European N. punctatum, 
chiefly distinguishable from it by the long cuneate base of the frond passing into a filiform stem and by the absence 
of dichotomous divisions with wide axils. The traces of the stem become gradually more faint at a short distance 
from the base of the frond, but do not break up into numerous veins. The normal form of the frond is broadly 
lanceolate, tapering to an acute point; with waved but entire margins, which are, however, often split and torn into 
numerous linear ribbon-like segments, caused by injury and not the natural divisions of the frond. 
Pratt CLXXVII.—Fig. 1, portion of frond and sorus :—magnified. 
4. NiTOPHYLLUM multinerve, Hook. fil. et Harv.; fronde breviter stipitata elliptica v. ovata subinteger- 
rima v. lobata, nervis pluribus parallelis distinctis dichotomis apicem versus frondis evanescentibus, soris ? 
Nobis in Lond. Journ. Bot. vol. iv. p. 255. 
Has. Hermite Island, Cape Horn, and Falkland Islands; Berkeley Sound, on rocks, not common. 
Stipes plerumque 4—4 unc. longus, nunc pollicaris, simplex. Frons in lacinias plurimas obtusas cito fissa, 2-4 
unc. longa, basi rotundata v. cuneata ; nervis plurimis, validis, ad apicem frondis evanidis. Substantia membranacea. 
Color roseus. 
Of this plant we have not very satisfactory specimens, or which may not belong to the Delesseria dichotoma : 
except that in the present species the nerves are much fainter, less distinct from the lamina, and vanishing further 
from the apex of the frond, which evinces no tendency to form distinct leaves. 
5. NITOPHYLLUM Smithii, Hook. fil. et Harv.; fronde stipitata flabelliformi lobata basi cuneata superne 
divisa et lacera, apicibus laciniarum obtusis, marginibus planis, colore rubro subfuscescente, nervosa, nervis 
gradatim evanescentibus basilari centrali crasso lateralibus radiantibus tenuibus nunc evanidis, soris minutis 
rotundatis margines versus laciniarum frondis densissime sparsis. Nobis in Lond. Journ. Bot. vol. iv. p. 256. 
(Tas. CLXXVIII.) a i 
Has. Falkland Islands ; in the bays and along the outer sea coast, growing on the roots of larger ۰ 
Frons 4—7 unc. longa, angusta v. latiuscula, in stipitem simplicem v. ramosam 4 unc. longam et ultra desinens, 
forma varia; nunc elongate, lacere; juniores latiores, lobate: laciniis latis, obtusis, emarginatis retusisve. 
Nervus centralis elongatus, basi latus, frondibus senioribus ultra medium extensus, junioribus cito evanidus ; laterales 
ad basin frondis flabellatim expansi, oblique arcuati. Substantia crassiuscula. Color ruber, demum fuscescens. 
This is a very distinct species ; but, like its congeners, so variable in form that little dependence can be placed on 
the characters drawn from its outline, or from the length of the stipes. Our figure gives a very faithful representa- 
tion of the colour and normal form of the old and young states, both veined and nearly veinless. 
Puate CLXXVIIL—- Fig. 1, portion of frond and tetraspores ; fig. 2, ditto with coceidium :—both magnified. 
X 
Falklands, etc.] CRYPTOGAMIA ANTARCTICA. 167 
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