Phlyctella longifera (Nyl.) D.J.Galloway
Platygrapha longifera Nyl., J. Linn. Soc. Lond. Bot. 9: 258 (1866).
Phlyctella atropa Nyl., Lich. N.Z.: 74 (1888).
Lectotype: New Zealand. Otago. Bush on top of Saddlehill near Dunedin. On bark of dead trees. October 1861. W.L. Lindsay, H-NYL 22326!
P. atropa. Lectotype: New Zealand. Otago, bush on top of Saddlehill near Dunedin. October 1861, on bark of dead trees. W.L. Lindsay, H-NYL 22326!
Thallus in stripes or patches, 1-2(-5) cm diam. Upper surface chalky-white, roughened, chinky, areolate-cracked, smooth in parts, matt, not minutely granular or furfuraceous. Apothecia innate, very small, 0.1-0.3 mm diam., clustered, very irregular in shape, often immersed in declivities in substrate, disc not easily seen, contorted through mutual pressure, concave to plane, dark brown or black, delicately white-pruinose, margins thick, white, concolorous with thallus, irregular, sinuous, contorted, ± inflexed, obscuring disc, often split and fissured. Ascospores fusiform, 7-11-septate, slightly curved, 55-80(-86) × 5-7 µm. Chemistry: Cortex K+ yellow. Stictic, hypostictic acids and unidentified compound A.
S: Otago. Known from a few coastal collections from the bark of Griselinia. Probably more widespread.
Endemic
