30S THE FLORA OF HALIFAX. 



Galium Cruciata (p. 51). A warning is furnished me by Mr. 

 J. Needham that a bed of this at the side of Lee Mill 

 Lane, Hebden Bridge, now three or four feet in extent 

 originated accidentally. In the summer of 1889 he had 

 this and other plants sent from Bedale in his vasculum, 

 and having emptied the contents over the wall here, in 

 order to use it on a ramble, he observed later in the 

 season that the crosswort had established itself. The 

 importance of the incident lies in its application to other 

 cases where the origin of a species in a particular 

 locality is, and must remain, a matter of conjecture. 



Artemisia Absinthium, L. — 72. Casual. 1900, waste ground, 

 Skircoat. 



Pctasitcs albits, Ga.Ttn. Alien. Established on the banks of 

 Tag Lock. 



Doronicum Pardalianchcs, L. Alien. Rastrick. — R. Wood. 



Lactuca Scariola, L. — 6. Casual. 1897, Elland (?) — J. Firth. 



Blackstonia perfoliata, Huds. — 60. (Chlora, L.J Casual. 1903, 

 Elland. 



Myosotis collixa (p. 76). Doubtfully native, probably a 

 Casual. 



Stachys arvensis (p. 87). Not more than a Colonist. 



Plantago arcnaria, YYaldst. & Kit. 1890, Box Trees Mill. 



Aniaranthus retroflexus, L. Casual. 1897, Elland (?) — /. Firth. 



Euphorbia Helioscopia (p. 94). Rather, a Colonist. 



E. Peplus (p. 94). Rather, a Colonist. 



Betula verrucosa (p. 95). Appears to be commoner and 



B. pubescexs the rarer form, reported for Broadhead Clough 

 and Colden Clough. 



Salix pentandra (p. 97). 1902, Near Alcomden, YYalshaw 

 Dean. 



Listera ovata (p. ioi). Cragg Vale. 



Habenaria coxopsea (p. 102). Ogden. 



Iris sibirica. The Iris, established at Tag Lock, assumed to 

 be L fectidissima, (p. 104) was submitted to Sir Michael 

 Foster and proved to be /. sibirica, a native of Asia and 

 Southern Europe. 



Crocus nudiflorus (pp. 104-106). Several additional stations 

 in the Ryburn valley have come to my knowledge, 

 through Mr. Joe Firth, viz.: (xiii.) In a young planta- 

 tion on the left bank of the Ryburn above Thorpe. 

 (xiv.) In the field adjoining Turn Lee Farm, near 

 Cotton Stones Church. (xv.) In the field fronting 

 Deerplay Farm, on the road to Mill Bank, (xvi.) Near 

 Upper Goat House, Rishworth. 



Lemna minor (p. 112). Above Brookhouse, Ovenden (gooft.) 



Potamogeton pusillus (p. 1 14). Outram's dam, West Vale. 



Carex paxiculata (p. 116). Rediscovered in 1901, in abund- 

 ance on the right bank of Widdop Water below the 

 foot of Greave Clough. 



