Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
230 B.A.N.Z. ANTARCTIC RESEARCH EXPEDITION<br />
Miiller-Argan as they do not fit Taylor's description as well as the others, althongh there is no<br />
qnestion they entered into Taylor's concept, giving rise to the phrase "sometimes pierced with a<br />
series of niinnte holes" as the other two entities do not show such well defined perforations, although<br />
plaiits iiiarlred "b" occasioilally show very small holes (essentially tears in the cortex betweell the<br />
costations). The plants marked "a" are the type of R. inflata v. gracilis Mull.-Arg. excl. syn. (see<br />
below). Plaiits marked "c" referred by Rluller-Argau and myself to R. limearia (Sly.) Ach. are reticulate<br />
foraminous at the base, flattened and canaliculate in the middle portion, ultimate branches<br />
also flattel~c?d, not terete and not producing the characteristic bends at the base of the apothecie<br />
(the character upon which the specific epithet was based). Although these plants marlred "c"<br />
nndoubteclly entered illto Taylor's concept, giving rise to the phrases "lobis . . . . hinc concavius-<br />
cnlis" and "The apothecia are merely marginal" which arc not descriptive of the other entities, 1<br />
thiillr we inay elimiiiate these plants as not conforming to many of the descriptive phrases which are<br />
only applicable to plaiits marlred "b" by Muller-Argan. I11 none of the plants do I find structures<br />
described by Taylor "gemmis dispersis granulatis statim linearibus." Taylor regularly used<br />
genwtn as the equivalent of soredia of other authors. The white cottoily medulla showing throngh<br />
the perforations of plants marked "a" might have been mistaken for soredia with low magnifica-<br />
tions but even these are not linear. Occasionally there are small slits between the ridges in the<br />
plants lnarlred "b" which also show the white medullary hyphae bnt these could hardly be mistake11<br />
for soredia. Hence in determining the applicability of R. yeniculata Hook. f. & Tayl. it would seem<br />
appropriate to tnk~ the plants marked "b" and similar plants in the two unmarked tangles as the<br />
type, since the description fits these plants better than it does the other entities and since the pronolulced<br />
geniculation of the apotheciiferous branches gave the specific epithet to the species, a<br />
character which neither of the other entities show.<br />
This species seems to belong in the section Ecorticatae Stnr. rather thaii in Euranlalina<br />
Stzbgr. subsect. Fistularia Vain., where the plants from Japan described by Hue, Nouv. Arch. Rfus.<br />
IV., 1, 79; 1899, evidently belong. Small black dots on the ultimate branches, suggestive of the<br />
ostioles of black-walled spermogonia, are viqible near the very very young apothecia, but were not<br />
sectioiied on account of the small amount of material present. In my sections of an older portion<br />
near a larger apothecinm, a darkened area, also suggestive of a spermogonium, was seen. While<br />
it had disiiitegrated too far to show structure, no mycelium suggestive of a parasite was seen.<br />
RAMALINA INFLATA var. GRACILIS Miill.-Arg.<br />
Ra~ua~lilra. inflata. v. graoilis 1Iull.-Arg., Flora, 71,132, 1888.<br />
Type: New Zealand, J. D. Hooker (Voy. " Erebus & Terror") in Taylor Herb.!at IIarvaid<br />
Univ. sub R. geniculatu Hoolr. f. & Tayl., plants marked "a".<br />
Thallas erect, about 3 cm. tall, rarely branched in the louler half, twice or thrice dichotoinons<br />
above, hollow, tcrete, llot compressed, about 1 mm. in diameter, snrface smooth and shining, perforate<br />
below, perforations circular or elliptic, relatively large, foveate above, probably whitish<br />
ashy wheii fresh, no\v clay colour, apothecia terminating short branches; cortex about 30p thick, a<br />
palisade of branched and anastomosing hyphae, lnmina about lP in diameter, liighly gelified, woven<br />
in with occasional longitndinal hyphae; mechanical tissue 35-55~ thiclr, of longitudinal conglntinate<br />
hrphae similar to those of the cortex, the gel slightly less refractive and more hyaline; algal<br />
layer abont 3 5 thick, ~ of loose colonies of Protococctcs, cells 8-lop in diameter, separated by loosely<br />
woven strands of medullary hyphae about 4~ in diameter, with veiy small lumina, not extending<br />
beyond the algae ; Ii yellowish fnscons.<br />
Apothecia flat at first, margin slightly elevated, expanding to 2 mm. in diameter, immarginate
Change language