176 A. K. PousiLi). 



riuMi^ii always sporadic in Givonlainl il is recorded Ironi a ^'oud 

 many habilats from tho intorior of the Nordost Bugt. Bnt, so far 

 as I can ascertain. il has rn^vor bocn collcclcd lar from hnman 

 luil)itations, and il iias most likcly Ix'cn disporsed l)y man. At 

 Cmanai] 1. insl. it is vory common among tho houses togothor willi 

 vigorous J^iiccinellias, wliicli in lim of Kbimus, aro froqutnljy 

 used for straw in tho nativo boots (kamiks). People travolHng from 

 Cmånaq to othor ])laces may thus easily disperse both tho Arabis 

 and the Puccinellia's. Liko Alopecnrus alpinus it is a dung-lovor. 



125. A. arenicola (Rich.) Gel. — Knk. Patorfik and Påtut. 



126. Brai/a piirpurascens {R. Br. ) Bunge. — Qaersuarssuq, PåtiitandAtå. 



127. Eutrema Edicordsii R. Br. — Kuk, Qaersuarssuk, Qeqertarssuak 

 71^30', Svartenhuk Peninsula at 71°22' and the intorior at 71^40'. 



From Qaersuarssuk I colloctod fivo living spocimons in ordcr to 

 cultivate thcm at the Danish Arctic Station. On July 29th all the 

 specimens had finished floworing. Apparently they stood the voyage 

 well and on my return to Godhavn three weeks later they were 

 planted in a Cassiope ielragona hoath in "Blæsedalen" on a suitable 

 place where humidity, insolation and the deposition of snow during 

 winter resembled the original habitat. 



Some days later I observed that several of the pods had opened 

 and the valves fallen ofT. On ono of thom only the valves were still 

 adhored, and, to my surj)riso they had oponod at the top of 

 the siliqua. As all standard works on systematic Botany to which 

 I havo had access without oxcoption state as an invariable rule 

 that amongst the Cruciferæ the valves opon IVoni Ihe base, I think 

 it best to call attention to this abnormality although I havo only 

 seen it once on one living specimon, but I havo also noticod it 

 on four herbarium specimens: Svartenhuk, Tartussaq, 1911, Por- 

 sild (in the Ilorb. of Tho Danish Arctic Station). Lapponica pono- 

 jensis, (Jrlow, 67^12', Kihlman; Qaersuarssuk, 29th Juli 1921, 

 A. E. Porsild; Duckett Cove, Parry, 1823 (in Herb. Haim.), 



Tho last montionod spocimon is probably tlip tyjic In Hobert 

 Brown's figuro (Aj)j). XI. Parry Voy. I. tab. A. lij^^s. Hi and 17, 

 drawn by Fa. Bauer and engravod by .1. Curtis) tiic jxxis arc 

 shown opening from the base, but in Ihc text Brown doos not 

 mention tho dohiscense; ho only says: "valvao . . . cortice domum 

 ad margines solubile, in disco arctius adhoronti . . ." Fl. Dan. 

 Tab. 2242 shows a siliquo slightly opened in the top. But, the 

 drawing being bad, it can hardly bo ascortained whether this was 

 accidontally or actually seen so by the dosignor. 



In 1922 my specimens in " Bla>sodalon" had diod, but the seeds 

 had gorminated and given rise to several soodlings around the 



