40 QUEENSLAND AGRICULTURAL JOURNAL. [1 Juny, 1899, 
Verrucaria coarctata, Strm. Thallus indicated by whitish spots; apothecia 
black, slightly prominent, nude, minute, width to about °8 mm., perithecium 
nearly spherical, incurved and colourless beneath ; spores 8, in saccate thee, 
colourless, ellipsoid, divided into numerous and brick-like cellules, "6 — 9 x 2—4 
locular, ‘027 — 035 x ‘013 — -018 mm.; paraphyses long, distinet, filiform. 
Hymenium not coloured with iodine, lutescent ; with the same reagent, the thecae 
become vinose fulvescent. On bark. 
Arthonia conspersula, Stn. Thallus pallid, thin; apothecia black, flat or 
rather convex, to about ‘5 mm., rotund or somewhat irregular, within colourless 
or ashy pale; spores 2-4°6, colourless, oblong-cllipsoid, 8-septate or rather 
4-locular, 0386 x 011 —-014mm. Hymenium with iodine, wine-red. Thecw 
peat ellipsoid, walls thick and hyaline. Spores when young often simple. On 
ark. 
As I possess only other two apothecia, I do not care meanwhile to corrobo- 
rate my diagnosis by destroying another. é 
Trypethelium exiguellum, Sérn. Thallus indicated by thin, whitish or somewhat 
bluish spots; apothecia black, 2-6, crowded, at first thalline clothed, then nude 
small; spores 4, occasionally 2, and rarely 1, colourless, ellipsoid or oblong- 
ellipsoid, murally divided (4—7) x (1-—3) — locular, 022 — -028 x -008 = 
01 mm., paraphyses filiform, distinct, irregular, branched, The thick hyaline 
walls of the theez and their contents with iodine beeome wine-red. On bark. 
Parmelia ablata, Strn. As the specimen from this region is not in good 
condition, inasmuch as not any spores have been detected in the thecae, I shall 
not give a description of it here, but shall do so ina paper on lichens from the 
neighbourhood of Warwick, Queensland, where this Parmelia was also secured. 
Physcia crispa, Pers. 
Physcia crispa, var. Ravenelii, Zuck. ‘luckerman considers this a eood species. 
In this collection of lichens there are also traces, in the shape of a few Pane 
stems, of another Physcia, which has a striking resemblance to one secured by 
Mr. Hugh Paton in 1875 at Riverina, New South Wales. As I have very little 
doubt of the identity of the two, T shall give a diagnosis of Mr. Paton’s lichen, 
Physcia excelsior, Strn. Thallus orbicular, to 1-2 in. wide, reddish or cinnabar- 
coloured, beneath concolorous or paler, with long linear-laciniate (K. pur- 
puracent) prostrate segments, flat or rather convex, width about °6 m.m,; 
dichotomous or towards the apex many times divided and ascendant, on all sides 
lengthily and very densely fibrillose ; apothecia concolorous, rather prominent, 
marginate, the margins often paler and somewhat spinulose below ; spores 8, 
colourless, oblong or rarely ellipsoid, polari-bilocular, the tubules very shortly or 
not at all joined, ‘013 — 017 x -006—-008 mm.; paraphyses distinct, with 
citrine apices, sprinkled with granules. Hymenium with iodine intensely 
cerulescent. On bark. 
This is evidently quite distinct from any of the many forms of P. 
chrysophthalma. 
Pannaria pannosa, var. accolens, Sérn. Similar to P. pannosa, Sw.; but the 
thallus more lead-coloured, and the mature spores brownish. Spores 8, simple, 
ellipsoid, epispore duplex, ‘O14 — -018 x 007 — ‘01 mm.; paraphyses scarcely 
separable, with brownish clavate apices; hypothecium colourless. On bark. 
Tuckerman, in his North American Lichens, vol. i., p. 119 (1882), says of 
the spores of P. pannosa that they are commonly brown. As I have never seen 
the spores so coloured except in this instance from Queensland, I have considered 
it preferable to constitute a variety of the lichen with such spores. 
The radicles beneath are not in such a dense felt-like mass as in P. painnosa, 
nor are the fibrille disposed in parallel ridges. Corticola. 
Pannaria molybdwa, Ach. 
