L E P R A R I A chlorina.
Bright-sulphur Lepraria.
CRYPTOGAMIA Algce.
Gen. Char. Seeds in a powdery substance loosely
clothing a thin crust.
Spec. Char. Bright sulphur-coloured.. Crust fibrous.
Fructification in small round clusters.
Syn. Lepraria chlorina. Ach,. Lichenogr. ined.
Lichen chlorinus. Ach. Prod. 6.
Pulverariachlorina. Ach. Meth. l . t . \ . f . 1. Westring
Iiich. 1. t. 1.
T h i s production, one of the most elegant and striking of1
its tribe, was discovered by Mr. Dickson, as he informs us,
long ago in Scotland. Mr. Turner observed it in 1807, °n
rocks behind the inn at Avemore in Strathspey, and from
that neighbourhood Mr. Borrer and Mr. Hooker sent our
present specimens.
The vivid greenish-lemon hue is remarkable, and even more
striking than L . flava, t. 1350, nor is it at all impaired by
keeping. The crust or basis of the plant consists of minute
entangled fibres, making a thick soft cushion-like mass, and
bearing innumerable little crowded roundish powdery clusters.
The true nature of the fructification is so little known, that
we rejoice to hear the learned Professor Acharius, whose specimens
accord with ours, has reduced his genus Pulveraria
to Lepraria, the latter being at best but obscure in its mode
of propagation.
Dr. Westring, author of a most curious work on the dyeing
properties of Swedish Lichens, with figures by the hand
of Professor Acharius himself, has obtained a variety of very
vivid tints from this Lepraria.