10 TRANSACTIONS AND PROCEEDINGS OF THE  [Sess. 1x1. 
n 
= Shetlands. ee 
a = 
z 8 (2 | 8 Sees 
| 2\¢|3\4\2)e) = lecie 
SPECIES. fete eps ete | 2) | = aa | a 
Et ies Ce tellin it |) Sot SS 
IMi|¢\al/Si/mla| # (Aes 
treet tes: al eerie Ss/ 8) 2 | ao] 3 
S| ell Saas ° =) al 
° ° fo} Zz Ss 5 
H | 
| 
I. | (0. |110.) IV. V- | VI.| VIL. | VIM.) TX. 
| BACILLARIEA—continued. 
Navicula alpina (W.Sm.), Ralfs . 2 ‘ : x 
5 Brébissonii, Kutz. : : : salle 
3 ‘radiosa, Kiitz . z é A Sales 
5 elliptica, Kiitz : : 5 Olt 2cSn tue 
s Tridis, Ehrenb., var. is (Ehrenb.), 
Van Heurck. : : ANTS 26 | 
pusilla, W. Sm. : : . : x 
Stauroneis Phenicenteron, Ehrenb. : F x | 
Vanheurckia rhomboides (Ehrenb. ), Bréb., var. | 
Saxonica (Rabenh.), G. S. West Nes | x 
Amphipleura pellucida, Kiitz : : 5 x 
Gyrosigma attenuatum (Kiitz), Rabenh. ; ; x 
Gomphonema intricatum, Kiitz, var. Vibrio 
(Ehrenb. i Van Heurck Ht 56 
olivacewm (Lyngb. )», Kitz x 
Coeconema lanceolatum, Ehrenb. } x 
,, | eymbiforme, Ehrenb. x | | } 
Amphora ovalis, Kiitz . x | xX x \ | 
Epithemia turgida (Ehrenb.), “Riitz | x | 
| gibba, Kiitz se oe 
Nitzschia \Palem (Kiitz), W. Sm. 5 : : So lsee os x 
» linearis (Ag.),W.Sm. . : 4 x 
Cymatopleura elliptica (Bréb.), W. Sm. : Shlec eal oe 
Surtrella robusta, Ehrenb.  . ne x 
aad Mii var. splendida ‘Ghrenb. ) Vv 
: Heurck . = <ul ters x 7 
» linearis, W. Sm. : 3 S| 4 x 
Campylodiscus Hibernicus, Ehrenb. . : : x 
MYXOPHYCE. 
Anabeena circinalis, Rabenh, : 3 : . 6 Kei ce ae * 
Oscillatoria tenuis, ‘Ag. : ; | x x x x 
Merismopedia glauca ‘(Ehrenb. »; Nig : : 3 | | x 
| :; ceruginea, Bréb. Shas hs F <7) <A x 
elegans, A. Br. | x x 
Coelosphoerium Kutzingianum, Nig ex x 
Nigelianum, Unger. | x x 
Mier ocystis Flos-aque (Wittr.), Kirchn. : : alee 
~% prasina (Wittr.), Lemm. . = : x x 
is elabens (Bréb.), Kiitz . . : , x 
stagnalis, Lemm. : . : x x 
Aphanocapsa pulchra (Kiitz), Rabenh. 5 F \ x 
Chroococcus turgidus (Kitz), Nag . , ; 5 Nee || Se 
5 coherens (Bréb.), ahaa x 
oh pallidus, Nag é 3 4 2 x 
nf limneticus, Lemm. a : : 5 x Xx 
i minor (Kiitz), Nag E : . A 5 oa] 
IJ].—GENERAL SYSTEMATIC ACCOUNT OF THE COLLECTIONS. | 
In this part of the present paper is embodied a detailed 
account of all the freshwater alge collected in the Orkneys . 
and Shetlands in 1903. 
Certain species and varieties are 
{ 
