38 QUEENSLAND AGRICULTURAL JOURNAL, [1 Jury, 1899, 
Usnea hirta, Fr. 
Usnea elegans, Stiri. 
Parmelia revoluta, F/k. 
Parmelia caperatula, My. 
Physcia chrysophthalma, var. denudata, W/m. 
Physcia sparsa, Zay/. ' 
Physcia aipolia, Ach. By some lichenologists this lichen is merely reckoned y 
variety of P. stellaris. In atpolia, however, the white medulla is tinged 4 
decided yellow by K; while in P. stellaris there is no visible reaction. 
By K is meant liquor potassx, or, rather, a stronger solution—viz., a drachm of potasyy 
Jusa to an ounce of distilled water. 
Physcia aipolia, var. acrita, Ach. Here the difference is mainly in the paly 
hypothallus as well as pale rhizine instead of black, as in P. aipolia. 
Physcia confluens, #r. I prefer to rank all the three specimens under P. com 
luens instead of P. picta, Sw., as the central part of the thallus is crustaceouy 
in each. There is, as I have elsewhere stated, no distinct line of demarcation 
between the two lichens. 
Pyxine subvelata, Sérn. Trans. N.Z. Institute, 1897. 
Pyxine rugulosa, S¢rz., ut supra. 
Pyxine subcinerea, Strn., ut supra. 
Lecanora aurantiaca, Lightf. 
Lecanora rutilescens, Strn. Similar to Z. albella, but with smaller apothecia 
and the margins thicker, and when broken down rubescent or carneous. Spores 
colourless, simple, ellipsoid or broadly ellipsoid, ‘CO8—'011. x ‘006—008 mm.; 
paraphyses few, medium, not easily separated, specked with lutescent or citrine 
granules, slightly club-shaped; hypothecium colourless. Hymenium with 
iodine intensely blue. On bark. Thallus and margin of apothecia with Kk, 
yellowish, then intensely red. 
Lecanora parella, Z. 
Lecanora subfusca, var. chlarotera, Vy/. 
Lecanora alligata, Strn. Thallus obscure or sordid; thickish rimose-diffract ; 
apothecia sessile crowded, small, to *8 mm., lutescent, flat, margin whitish, 
obtuse, margin entire or crenulate, spores 8, colourless, ellipsoid, simple, epipore 
duplex, ‘011—-013 x -006--'007 mm. ;_paraphyses slender, slightly club-shaped, 
not sprinkled ; hypothecum colourless. Hymenium with iodine intensely blue, 
On bark. Allied very closely to Z. ochrella, Ny]. 
Lecanora pheantha, Wy’. Syn. Lich., N. Caled., p. 24. There are dif- 
ferences, such as the apothecia in the Queensland plant being at first ochraceous, 
then fusco-rufous and, at times, conglomerate. There is also a dense 
stratum beneath the hymenium, composed of fine, irregular, rather indistinct 
staffs. As Dr. Nylander makes no mention of this stratum in his description of 
the New Caledonian lichen, it might be as well, meanwhile, to distinguish the 
Queensland lichen by the name, L. pheanthella. 
Lecanora punicea, var. Babingtonii, Muss. 
Lecanora punicea, var. collata, Strn. Apothecia innate. 
Lecanora punicea, var. infusea, S/n. Similar to LZ. punicea, var. Babingtonii, 
but the apothecia are reddish-brown, with whitish crenulate margins, and with 
thallus minutely whitish-granulose. Paraphyses not separable, with almost 
colourless apices, but slightly club-shaped (K-); hypothecium colourless. In 
other matters resembling L. punicea, var. Babingtonti. On bark. 
Pertusaria leioplaca, var. minor, Schaer. 
Lecidea (Buellia) disciformis, 77. 
ae 
