Falklands, etc.] FLORA ANTARCTICA. 473 



tenerrima rosea, sons majusculis oblongis coccidiisque per frondem sparsis. Nobis in Lond. Jonrn. Bot. 

 vol. iv. p. 254. (Tab. CLXXVI1.) 



Hab. Hermite Island, Cape Horn ; abundant in deep water. 



Radix discus cartilaginous. Stipes gracilis, i-£ 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, integerrinia v. in lacinias fissa, adultior punctis crebriformibus pulcherrime terebrata, apice 

 exemplaribus normalibus attenuata, margine integerrima, undulata, plus minusvc in lacinias fissa, subavenia v. basi 

 solum nervis indistinctis e apice stipitis ortis notata. Sori numerosissiini, 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.punclatum, 

 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. 



Plate CLXXVII. — Fig. 1, portion of frond and sorus : — magnified. 



4. Nitophyluuh 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. 



Hab. Hermite Island, Cape Horn, and Falkland Islands ; Berkeley Sound, on rocks, not common. 



Stipes plemmque \-~ \ unc. longus, nunc polbcaris, simplex. Frons in lacinias plurimas obtusas cito fissa, 2-4 

 unc. longa, basi rotundata v. cuneata ; nervis plurimis, validis, ad apicem frondis evanidis. Substantia membranaeea. 

 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 teuuibus nunc evanidis, soris minutis 

 rotundatis margines versus laciniarum frondis densissime sparsis. Nobis in Lond. Journ. Bot. vol. iv. p. 256. 

 (Tab. CLXXVHI.) 



Hab. Falkland Islands ; in the bays and along the outer sea coast, growing on the roots of larger Alga. 



Frons 4-7 unc. longa, angusta v. latiuscula, in stipitem simplicem v. ramosam \ unc. longam et idtra desinens, 

 forma varia ; nunc elongatse, lacerae ; juniores latiores, lobatse : 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 fusceseens. 



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 veiidess. 



Plate CLXXVHI. — Fig. 1, portion of frond and tetraspores ; fig. 2, ditto with coccidium : — both magnified. 



5 R 



