NEW LICHENS: 179 
villum albescentem statim emittentibus; apotheciis con- 
fertis, extus villosis, sparsis, demum planis, disco rufes- 
centi-fusco, margine subintegerrimo, villoso. 
Has. No. 259. South America; Humboldt, Hook. herb.— 
This species has altogether the habit of S. obvoluta, Ach., 
which was collected by Menzies at the Straits of Magellan ; 
ithas, however, the following remarkable and distinctive 
characters; the thallus is unchanged in colour when 
moistened; it has true concave cyphellæ of a pale brown 
colour and the apothecia aré scattered, not marginal. 
7. S. lutescens, Tayl.; thallo orbiculari, inciso-lobato, luteo- 
viridi, levigato, lobis oblongis, sinuato-crenatis, subtus 
fulvis, villosis; cyphellis concavissimis, intus flavescenti- 
bus; gemmis marginalibus, granulato-pulveraceis, statim 
ramosis, olivaceo-fuscis ; apotheciis sparsis, extus villosis, 
demum convexis, disco rufescenti, m marginem thallodem 
integerrimum demum excludente. 
Has. Java; M. Spanoghe, Hook. herb. Jamaica; Purdie.— 
Thallus 6-8 inches wide, a little greener when moistened, 
incised almost to the centre, the margins elevated with 
- Crowded buds, whose duskier olive colour contrasts with 
the greenish tawney surface of the thallus. The buds are 
Pres formed when they branch out and assume a - 
i colour ; a character, joined to the — inferior 
surface, taces this ipt se ze from | 
8. 8. Leifland: Tayl. ; iuis: piepe bon Viresdénti, 
5 Subtus albido, lobis rotundatis, laciniatis, adscendentibus; —— 
ON pellucidis, albidis, filiformibus ; apotheciis sessi- d er. 
> » Brazil; Mr. R. PEE +: — Thallus s rapidly 
Ja Lr moisture and becoming soft and 1 iccid. 
