The Botany of Iceland - 01.12.1916, Qupperneq 7

MARINE DIATOMS FROM THE COASTS OF ICELAND
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Diploneis bomboides A. S. var. media Grun. Cl. & Gr. A D., 41,
Tab. III, íig. 54.
Steinaklettar (S.W.) H.Js.
Area: Eur., Grl., A. S.
Diploneis chersonensis (Grun.) Cl. Cl. Syn., 1,91; V. H. Trt., Tab.
XXVI, fig. 738. (Navicula chers.).
8 samples (S. 1, S.W. 5, N.W. 1, N. 1).
Area: Ubiquist.
In a sample (Broddanes (N.) H. Js.) I have found a form, which
agrees well with Navicula apis (see Per. Diat. mar., 121, tab. XIX, fig. 3—8)
which by Cleve 1. c. is referred to Dipl. cherson.
Diploneis coffæiformis (A. S.) Cl. Cl. Syn., I), 81; A. S. N. S. D.,
Tab. I, fig. 22.
Grjótnes (N.), C. H. O.
Area: Eur., As., Am, Grl.
Diploneis constricta (Grun.) Cl. Cl. Syn., 1,83; Donk. Br. D., Tab.
VII, fig. 6. (Navicula Musca).
Isafjörður (N.W.), H. Js.
Area: Eur., As., Am, Grl., A. S.
Diploneis contigua (A. S.) Cl. var. Eudoxia A. S. Cl. Syn., 1,83;
Per. D. mar., Tab. XVII, fig. 6. (Navicula E.) Tab. nost., fig. 2.
Vestmannaeyjar (S.), H. Js.
Area: Eur., Afr., As., Am, A. S.
I have given a drawing of this species, as the form found by me
is somewhat more contracted in the middle than the figure shown
by Peragallo. The other figures ([uoted by Cleve 1. c. have all approx-
imately rectilinear sides.
Diploneis Crabro (Ehr.) Cl. var. minuta Cl. Cl. Syn., 1,102; Per.
D. mar., Tab. XV, fig. 7.
Vestmannaeyjar (S.), H. Js., Reykjavik (S.W.), H. Js.
Area: Eur., Aust.
Diploneis didyma (Ebr.) Cl. Cl. Syn., 1,90; V. H. Trt., Tab. III,
fig. 147.
Höfði (N.), H. Js.
Area: Ubiquist, Grl., A. S.
Diploneis elliptica (Ktz.) CI. var. grandis Grun. Cl. Syn., I, 92;
Pant. Ung. III, Tab. XI, fig. 182 (Nav. præclara).
Búðir (S.W.), H.Js.
Area: Eur.
Diploneis fusca (Greg.) Cl. var. subrectangularis Cl. Cl. Syn., 1,93;
A. S. Atl., Tab. VII, fig. 4.
Brokey (S.W.), H. Js., Dyrafjörður (N.W.), C. H. 0.
Area: Eur., As.