P l a t e LVIII. B.
CALOTHRIX SCOPULORUM,
C a l o t h u i x scopulorum; stratum velvetty, dirty green, of indefinite ex ten t;
fllaments flexuous, subulate, sub-attenuated, simple.
Calotheix scopulorum, Ag. Syst. p..70. Ilarv. in Hook. Br. M. vol. ii. p. 368.
Harv. in Mack. FI. Hib. p a r t 3. p . 237. Harv. Man. p . 157.
O s o i l l a t o k ia sco p u lo rum , Ag.Syn. p . 1 1 1 . Hook. FI. Scot. p a r t 2. p . 7 9 .
Grev. FI. Edin. p . 3 0 4 .
CoNFEEVA s c o p u lo r u m , Web. et Mohr, Beis. p . 1 9 5 . t. 3. f. a, b. Both. Cat.
Bot. v o l. iii. p . 1 9 1 . Billw. Conf. Introd. p . 3 9 . Suppl. t. A. E. Bot. t . 2 1 7 1 .
H ab. On marine rocks, near high water mark. Common.
G e o g r . D i s t e . Shores of Europe; and probably dispersed throughout the temperate
zones.
D e s c e . Stratum o f in d e fin ite e x te n t, d a rk , dii-ty gi-een, s lip p e ry . Filaments a
lin e in h e ig h t, flexuous, o fte n ve ry m u c h cu rled , su b u la te , ta p e r in g to a
m o re o r le°ss a c u te p o in t, c row d ed , tu fte d , th e tu f t s g lu e d to g e th e r a t th e
b a s e b y a slim y m a tte r , s imp le. Stria sometime s in d i s t in c t ; sometime s
weU-defiued a n d v e ry close. Colour, u n d e r th e micro sco p e, a d u ll, yeUowish
g re en .
This forms slimy patches, very treacherous to unwary feet, on
the surface of rocks near high-water mark, often growing m
places where it is only wet by the splashing of tbe sea, or only
covered at spring tides, and where it is much within the influence
of rain. It is found on all our shores, on rocks of every geological
character indifferently, and is probably to be met with in
similar situations all over the world. It was first detected in
Sweden, by Weber and Mohr, and introduced to tbe notice of
British botanists by Mr. Dillwyn.
i l l
B. Fig. 1. C a l o t h e ix s o o p u l o e u m . Portion of the stratum:— the natural size.
2. A tuft of filaments. 3. Apex of a filament:— both magnified.