The Botany of Iceland - 01.12.1949, Qupperneq 40

3«
EMIL HADAC
m; W-Plateau 590 m; Vogsósar 3 m; Cape Reykjanes zo m; Brennisteinsfjöll
560 m; Geitafjall 500 m; etc.
Crucijerae.
132. Arabis alpina L., Sp. pl. (1753) 664.
145—620 m.
Scattered, in ravines. An individual has usually 2—3 stems with about 43
pods (average from 7 samples). Each pod contains about (9)—15—(20) well
developed seeds (average from 26 samples). One aver. individual produce
thus ca. 645 seeds.
Grindavík (Ingólfur Davíðsson), Geithöfði, NW slope, 145 m, fl. 23. VII. 37;
Kerlingarskarð 500 m; Vífilsfell 610 m; in a ravine above Purrá, 150 m;
Sveifluháls 320 m; Húsmúli 360 m.
133. Cakile edentula (Bigel.) Hooker.
o—10 m.
On beach sand, scattered.
Hafnarfjörður (Solander), Járngerðarstaðir (Bjarni Sæmundsson), Vogsósar
(Thoroddsen), 7 m; Narfakot; Vogavík; Grindavík; Herdísarvík; Strandar-
kirkja; Krísuvík; Keflavík; Hvaleyri; Vogshús.
134. Capsella Bursa-pastoris (L.) Medic. (1792) 8j.
1—360 m.
Near settlements, endozoochore, growing from sheep dung. Here and there
on the sea shore.
Hafnarfjörður (Solander), Hvaleyri, t m; Narfakot o m; Grindavík 5 m;
Látsfjall 85 m; Herdísarvík 2 m; Vogsósar, “tún” 2 m; Stóri Nýibær 135 m;
Logberg 120 m; Hveradalir 360 m; Núpar 15 m.
135. Cardamine pratensis L., Sp. pl. (1753) 656.
3—380 m.
In the lowland, frequent.
Hafnarfjörður (Solander), Narfakot 3 m, fl. 15. VI. 37; Snorrastadatjörn 7 m;
Krísuvík 135 m; Herdísarvíkurfjall 3—150 m; Vatnaás 180 m; Sveifluháls
235 m, fl. 2. VII. 36; Djúpavatn 198 m; Krokamýri 200 m; Krísuvíkurdalur
135 m; fl. 12. VII, 36; Selalda 100 m; Geitahlíð 110; Hlíðarendi 3 m; Hús-
múli 310 m; Hólmshraun 120 m; E-Plateau, southern slope, 140 m; Hengill
320—380 m, Fóelluvötn 180 m; Vatnavellir 180 m; Strípshraun 140 m;
Búrfell 130 m; Stóri Nýibær 170 m, fl. 14. VII. 37; Syðri Stapi 150 m;
Vigdísarháls 205 m; Grindavík 4 m.
136. Cardaminopsis hispida (Mygind) Hayek in Hegi IV. 419.
3—685 m.
(Arabis petraea Lam.)
Frequent, in fell fields. An average individum has (7)—13—(26) stems with
ca. 15 pods on each stem (aver. from 15 samples). Each pod contains about
(16)—20—(27) seeds (aver. f. 15 samples). One individual produces thus
ca. 2.300 seeds.