Flora of New Zealand Series

B. colensoi Müll. Arg., J. Linn. Soc. Lond. Bot. 32: 206 (1895).

B. albidoflavida Zahlbr., Denkschr. Akad. Wiss. Wien math.-naturwiss. Kl. 104: 365 (1941).

Holotype: New Zealand. Hawke's Bay, Napier, on pebbles. Colensol1729. BM!

B. albidoflavida. Type: New Zealand. Canterbury, Castle Hill Basin, c. 600 m, on limestone. J.S. Thomson 3970.

Thallus pale pinkish, ochraceous or yellowish-white, thin, granular, friable, ± areolate in raised lumps 0.25 mm diam., prothallus pale, indistinct, K-, 1-4 cm diam. Apothecia sessile, applanate, rounded or with undulate margins, solitary or 2-5-confluent, 0.25-1.4 mm diam., disc bright red, matt or minutely granular, margins thin, shining, entire to subcrenulate, concolorous with disc. Epithecium dense red-brown 13-20 µm thick. Hymenium colourless c. 80 µm tall. Hypothecium pale yellowish or colourless c. 50 µm thick. Ascospores biseriate, oval-ellipsoid with rounded or slightly pointed ends, straight, 12-17 × 5-8.3 µm septum ¼ to ⅛ length of spore.

N: Napier. S: Canterbury (Castle Hill). On limestone.

Endemic