■ r
Chroolepus um h iin um . KuU.
Stratum thin, crustaceous, ra ther pulverulent, reddish brown
growing pale when dead, threads and branches abbreviated,
torulose, joints nearly as long as broad, broadly elliptic or subglobose.
S i z e . C e ls -02 m m . d iam .
Rabh. Alg. Eur. i., 372.
Protococcus crustaceus, Kutz. Spec. 203.
Protococcus umhrinus, K u tz . Pbyc. Gen., t. 7, f. 2. Colin in
Hedwigia i.,p . 1.
On the bark of beech and oak. (Kelvedon. E . G. V.)
Plate CXXX. fig. 2. Chroolepus umhrinum X 400 diam.
AUTHOEITIES QUOTED.
A b b o t B e d f . Flora Bedfordiensis, by Charles Abbot, M.A.,
F.L .S. 8 o. Bedford, 1798.
A g . I con. A l g . lo o i i e s Algarum in e d its e , a u c t . Car. A .
Agardh. 4o. Lund, 1846.
A g a k d h S p e c . Speoies genera et ordines Algarum, auct. J .
G. Agardh. 8o. Lund, 1848.
A g . S y s t . Systema Algarum, auct. C. A. Agardh. 1 2 o .
Lund, 1824.
A n n . d e s S c i . N a t . Annales des Sciences Naturelles,
Botanique. 6 series. Paris, 1824-1884.
A n n . N a t . H i s t . A n n a l s a n d Magazine of Natural History.
London, 1838-1884.
A r c h e r M ic r . J o u r n . Various communications by W . Arcber,
in Quarterly Journal of Mioroscopioal Science. London,
1857-1880.
B e r k . G l e a n . Gleanings of British Algæ, being an Appendix
to Supplement to English Botany, by Rev. M. J .
Berkeley. 8 o., pi. 20. London, 1833.
B e r k , in G a e d . C h r o n . Rev. M. J . Berkeley on Palmella in
Gardeners’ Chronicle, 1853, p. 515.
B ia s . A l g . M ic r o . Di alcune Alghe microscopiche, B. Biaso-
letto. 8 o., 29 pl. Trieste, 1832.
B o r n e t & T h u r . N o t . A l g . Notes Algologiques, par Ed.
Bornet, et G. Thuret. Folio. Paris, 1876-1880.
B o r z i S t u d i . Studi Algologioi, di Antonino Borzi. P a rt I.
Messina, 1883.
B o r z i A l g . F ic o . Note alia morfologia e biologia delle Alghe
Ficocromaoee, di Antonino Borzi. Tbree parts, in
Giornale Botanico Italiano. Vols, x., x i., xiv.
B o ry B a th a o h . Memoir sur les genres de coiiferves nommes
Thorea, Lemanea, Batrachosperma et Draparnaldia, par
Bory de St. Vincent, in Annales des Museum. 4o.
Paris, 1808.