i 8 8 Th e h ish Na tu ra list. July, 



♦PencedanuiYi sativum, Benth. and Hook, fil.— Abundant, and 

 evidently long-established, on quarry spoil-banks near 3rd lock, 

 Grand Canal, 1902. 

 * Sambucus EbuIvUS Iv. — Fully established at intervals for 130 paces 

 along railway banks east of Liffey Junction, 1903 ; F, C. Crawford & 

 N.C. The standing of the plant here entitles it to a place in the 

 county flora. 

 JValerianella Auricula, D C— In sandy fallows, Portrane, 1900; 



and a few plants on the railway north of Donabate, 1902. 

 Anthem is arvp.nsis, L. — Abundant in a new pasture, and in ad- 

 jacent fallows between Lusk and Man of War, spreading over fully 

 half an acre, 1902 ; several plants in a wheat field, Portrane 

 Peninsula, 1902 ; a welcome confirmation of earlier records, since the 

 species of this genus are not infrequently confounded with each 

 other — and, indeed, with species of the neighbouring genus 

 Matricaria, 

 Artemisia marltlma, L. — A large patch spreading for 15 yards along 

 a mud bank above a salt-water ditch near Baleall}^, Rogerstown 

 Creek, also a few plants along the banks of the ditch, 1902. The only 

 Co. Dublin station where this rare plant occupies such a habitat. 

 *A. Stelleriana, Besser.— In August. 1901, two plants of this natural- 

 ized alien were found on the shore near the end of Long Lane, Sutton. 

 These were probably derived from the North Bull, to the extreme 

 northern end of which, separated only by a narrow water channel 

 from the Sutton shore, the plant has now spread. Its total extension 

 on the North Bull in 1902 was found to be fully a mile and three 

 quarters. 

 Matricaria inodora, L. — A curious monstrous form of this common 

 sea-coast plant was observed on the shore at Portrane in November, 

 1902, by Dr. Scully & N. C. In this form the main flower-head pro- 

 duced from its involucral bracts a perfect umbel of long-stalked 

 pseudo flower-heads, made up only of aggregations of involucral 

 bracts. Many of these pseudo flower-heads in turn produced similar 

 umbels, the whole arrangement resembling in form the compound 

 proliferous umbels of Alliuin Babingtonii. Dr. Maxwell Masters, to 

 whom a specimen has been submitted, is inclined to attribute the 

 monstrosity to irritation due to insect puncture. 

 Seneclo vulgaris, L., var. radiatus, Koch. — Abundant and very well 

 marked in association with the type and with S. sqtialidus in waste 

 ground near Inchicore railway works, 1902 : F. W. Burbidge & N. C. 

 — probably introduced from Cork with S. squalidus. 

 *S. squalidus, L. — A few large plants on the wall of the Phcenix Park, 

 near Island Bridge, 1902-03, nearly half a mile distant from the 

 Inchicore railway works, w^here it is fully established. These Phoenix 

 Park plants probably originated from seeds wind-borne from 

 Inchicore. 

 •Ccntaurea aspera, L. — One clump of several plants in a sandy pas- 

 ture field at Portmarnock, 1902. 



