i ob vi.m.n i :<;; 



months, which T am unable to decide. Tin- present Bpecies 

 would belong to Spongitesoi KtLtzing, and to TAthophyllum 

 of Philippi, bul aoes no1 appear in the lisl of Mel 

 given by I tecaisne, nor yet, excepl ander the more modern 

 trivial name decussata, in thai of Endlicher. Neverthe- 

 less n is one of the earliest know n Bpecies, as its nnmerons 

 Bynonj ms testify. 



L56. lichenoides (The lichen-like Afelobesia) j frond attached 

 to rocks, free at the margins, foliaceous, Lichen-like, variously 

 lobed ; foliation- spreading, often imbricated ; ceramidia 

 large, conical, prominent, Harv. Man.ed. "2. j>. L09. (Atlas, 

 PL WW. Pig. 160.) 

 Millepora Lichenoides, BorL 



J lab. Cornwall and west of Ireland. On rocks and in tide- 

 pools near low-water mark. 

 This is by much the prettiest and most plant-like of 

 the tidal Nullipores, strongly resembling in form and 

 genera] habit one of the foliaceous lichens of the genns 

 Pcvrmelia, but differing in being of a stony substance ; — 

 thin however as paper, and very brittle, it is closely re- 

 lated to M. agariciformis, from which it differs more in 

 general habit than by any precise character: that spe- 

 cies growing in globose masses, which are unattached, and 

 lie, subject to the drifting of the waves, on the 

 bottom. 



157. membranacea {The membranaceous Melohesid) •. minute, 

 dotdike, very thin, pale purple, circular, at Length confluent, 

 attached to other Algae; ceramidia one or two, depr - 

 Lamour. Cor. Flex. p. 315. pi. VI. f. 2,3. (Atlas, PL 

 \ \ \ V I . Fig. 163.) 



Bab. Common on the Leaves of Zosiera, the fronds of Chondru* 

 crispus, etc. All round the coast. 

 Frond from half a line to a line in diameter, very thin 



and filmy, circular at first, then, from several becoming 



confluent, more or less lobed or irregular. Ceramidia one 



or two, depressed. 



15S. farinosa (The flowry Melobesia) j minute, irregular in 



outline, rather thin, pallid, with two or three prominent' 

 ceramidia. LamOW. Cur. Flex. j/. 315. pi. 12. 'Ail \-, 



PL WW I. Fig. ldij 

 ldh . ( )n \ arioufl AigsB. 



Rather Larger And thicker than the preceding, with more 

 prominent fruit. In other respects similar. 



