Syn. S-porledera minuta Jaeg., Adumbr., p. 223 ; Par., Ind., ed. 1, todon, and I hesitate, therefore, to maintain the genus Stirtonia on the sole base, as it would practically be, of the mitriform calyptra. The capsule is very pachydermatous, and the neck, too, of firmer consistency than in most of the species, passing abruptly at the base into the seta, not tapering gradually, but at the same time equal all round and not forming a struma. The deoperculate capsule snowremains of an annulus. This rare species has not, so far as I am aware, been refound since collected by R. Brown on the west side of Stewart Island in 1889 and 1892.
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