522 
Notes . 
several important particulars from the typical form, we propose to 
keep it as a well-marked variety under the name of E.fenestratus , Berk, 
var. Lebelii , Holm, et Batt., and to regard the plant described by 
Kjellman under the name of E. Lebelii var. borealis as another 
variety, under the name of Ectocarpus fenestratus var. borealis , Holm, 
et Batt. 
V. Our attention has also been called to several small errors, 
principally in regard to authorities for names, which we do not 
propose to deal with at present. The following corrections and 
additions may, however, be made. 
P.68. ‘Tribe II. — Lyngbyeae’ should precede ‘ Phormidium 
Kiitz/ 
P. 70. Immediately after ‘Anabaena torulosa, Lagerh/ insert 
1 Species requiring confirmation/ Sphaerozyga Berkeleyana, Thur. 6 ; 
Sphaerozyga Broomei, Thur. 6. 
P. 76. To follow ‘ Cladophora crystallina/ 
Cladophora gracilis, Kiitz. 5. 6. 9 ! 
P. 76. Under 1 Species requiring confirmation/ after ‘ Cladophora 
lanosa, Kiitz/, insert c Cladophora Gattyae, Harv/ 
P. 77. Read Codium tomentosum, Stackh. 
f. amphibia, Holm, et Batt. 
instead of C. adhaerens, C. Ag. 
f. amphibium, Holm, et Batt. 
P. 78. To follow 1 Striaria attenuata, Grev./ add as a ‘Species 
requiring confirmation/ ‘ Striaria fragilis, J. Ag/ 
P.87. For ‘Diploderma miniatum, Kjellm./ read 1 Wildmania 
miniata, Fosl/ : and for c D. amplissimum, Kjellm/, read ‘ W. miniata 
f. amplissima, Fosl/ 
P. 95. For ‘ Polysiphonia byssoides, Grev/, read ‘Lophothalia bys- 
soides, J. Ag/, and place it after Pterosiphonia. 
VI. During the present year several species of Marine Algae have 
been detected as natives of Britain, and others collected by us before 
the present year have been identified. We therefore embrace the 
present opportunity of publishing the additional species. 
P. 68. Under Oseillariaceae add Lyngbya lutea, Gom. 5 ! 
P. 71. Under ULVACEAE, and above Pringsheimia scutata, add 
Protoderma marinum, Rke. 2 ! 
Ulvella lens, Cm. 2 ! 
Monostroma fuscum, Wittr. 2 ! 
