Page:The Botany of the Antarctic Voyage.djvu/224

198 8. Sticta Freijcinetii, Delise; thallo flavo-cinnamomeo rariusve olivaceo nudo glabro laevi piano v. eoncavo rim is albidis, subtus nudo v. velutino atro v. luride brunneo, lobis linearibus concavis divaricatim ramosis, marginibus undulatis crenatis v. sinuato-lobatis glaberrimis v. sorediatis, cyphellis albidis, apotlieciis sparsis plerisque marginalibus breviter stipitatis concavis extus villosis puberulisve, disco piano rufo-fusco demum valde concavo, margine fimbriato crenato setate involuto. — S. Freycinetii, Delise, Monogr. de Sticta, p. 124.

1. 1-1. f. 45. S. glabra, nobis, inLond. Journ. of Bot. vol. iii. p. 647.

Hab. Lord Auckland's group and Campbell's Island ; on the trunks of trees and on rocks in mountainous places, very abundant.

An exceedingly variable plant, of which we have added a character, that of Delise being imperfect. The most obvious specific distinction lies in the pubescent apothecia with fimbriated margins to the cups, to which may be added, the pale colour, and the wrinkled margins of the lobes, which are sometimes extremely concave. In alpine specimens the thallus is often quite smooth underneath, with the margins singularly crumpled. The colour varies, underneath it is of all shades, from black to a dirty yellow. Cape Horn and Falkland Island specimens are more plane, with the lobes and apothecia larger.

4. Sticta cellulifera, Hook. fil. et Tayl.; thallo stellatim expanso subdichotome ramoso fusco v. flavo olivaceo saepe virescente glabro profunde reticulatim lacunoso rimis albidis, subtus fuliginoso tomentoso apicibus loboriun flavescentibus, lobis ktiusculis rotundatis angulatisve subacutis obtusis retusisve, cyphellis parvis flavis, apotlieciis plurimis plerisque marginalibus, disco atro piano demum concavo, marginibus integris crenulatisve inflexis.

Hab. Lord Auckland's group and Campbell's Island ; on the trunks and branches of trees, abundant, also on the mountain rocks.

We know of no single character by which this form, which is as variable as any of its congeners, may be recognized. In its normal state the whole frond is fully a span across, all parts of it rugose with deep lacunae; specimens from the woods are of a lax habit, with lobes an inch broad, of a pale brown or yellow beneath; those from the mountains, again, are deep olive green and almost black beneath, with the lobes short and round, and the cyphellae of a bright yellow. In many respects it is very closely allied to the S. carpoloma, Debse, which, according to Montagne (whose authentically named collection of Sticta is the completest I have seen), has the apothecia invariably marginal. The present plant includes in part both S. impressa and S. cellulifera, of the 'London Journal of Botany.'

5. Sticta Menziesii, Hook. fil. et Tayl.; thallo stipitato valde coriaceo obovato-cuneato ecostato flavofusco subtus brunneo, laciniis plamusculis lobatis retusis supra glaberrimis lsevibus subtus puberulis, cyphellis immersis luteis marginibus elevatis, apotlieciis sparsis atro-fuscis, disco piano demum concavo, marginibus tenuiter inflexis.

Hab. Lord Auckland's group ; on the trunks of old trees.

Discovered by Mr. Menzies in Dusky Bay, New Zealand. Very distinct from S.filiciiia, of Acharius, in the ecostate frond, very thick texture, and dark coloured apothecia. Mr. Menzies' specimens have rather broader lobes, but do not otherwise differ from those gathered in Lord Auckland's group. The S. httifrons, A. Rich., is also eostate, and of a different colour, with small pale yellow-red apothecia. The present is in New Zealand probably confined to the southern extremity.

6. Sticta RicJiardi, Mont., Toy.au Dole Sud, ined. S. carpoloma, A. Richard, JFlor.Nbv.Zel.Tp.SQ.t. 9.f. 1.

Hab. Lord Auckland's group; on the trunks of trees.