VALERIANA 267 



Usually S. arvensis is subglabrous, but occasionally it is clothed with 

 pubescence ; it is then the var. hirsiita, Baguet ; the broad-leaved form 

 is var. ovata, Fisch.-Benz. ; and the white -flowered form from the 

 Kidgeway is var. negJecta (Guep, ex Nym. Consp., as a species). A more 

 erect form was seen with the type at Tidmarsh. The var. Walravenii ^ 

 from Hurley was more hairy than usual, and in this, as in the specimens 

 from the Hook of Holland alluded to by Ascherson, the fruit is rather 

 less hairy than usual. It is probable that the variety with the reduced 

 calyx limb and teeth will be found to be widely spread in Britain. 

 I gathered it in Portland Isle, Dorset, in 1895. 



Sherardia arvensis is found in all the bordering counties. 



'!3 



VALEEIANACEAE, Batsch. Tabl. Affin. 227 (1802). 



VALERIANA, Linn. Gen. n. 43 (Tournefort, Inst. t. 52). 



V. dioica (dioeca), Linn. Sp. PI. 31 (1753). Marsh Valerian. 



Top. Bot. 215. Syme, E. B. iv. 238, t. 668. Nyman, 336. Fl. Oxf. 153. 



Native. Uliginal. Marshes, bogs, wet meadows. Locally common and 

 widely distributed. Absent from considerable areas. P. April- 

 June. 



First record. V. dioica, Dr. Noehden, Mavors Agr. Berks, 1809. 



1. Isis. Carswell, Miss M. Niven. Coleshill, Wytham. Shrivenham. 



2. Ock. Near Uffington. Frilford. Kennington, Fl. Oxf. Near 



Marcham, Walker. Cothill. Wootton. Boar's Hill. Wantage. 

 Kadley. Steventon. Appleford. Blewbury. Cholsey. Challow. 



3. Pang. Bradfield, Jenkinson. Pangbourn. Moulsford. Stand- 



ford Dingley. 



4. Kennet. Newbury, RussclVs Cat. 1839. Greenham. Aldermaston. 



Silchester. Kennet meadows, rather frequent. Near Newbury, 

 Kintbury. Chilton Foliat. Shefford. Snelsmore. Beenham. 

 Thatcham. Theale. Midgham. Tilcomb Green. 



5. Loddon. Aston, Warren Kow, Stanton. Marsh near Sandford 



Mill, Salmon. Hurst, Melvill. Sonning meadows. Shinfield. 

 Crazey Hill, Tufiiall. Coleman's Moor. Long Moor. Near 

 Hurley. Wokingham. Easthampstead. Sandhurst. 

 Valeriana dioica is found in all the bordering counties. 



V. of&ciualis, Linn. Sp. PI. 31 (1753). Small Valerian, True Valerian. 

 V. collina, Wallr. in Linnaea, xiv. (1840) 537. V. officinalis, var. 



Mikanii, Syme, E. B. iv. 236. V. Mikanii, Lond. Cat., not V. Mikaniae, 



Lindl. in Journ. Hort. Soc. iii. (1848) 316. 

 Top. Bot. 216. Reichb. Ic. Fl. Germ, et Helv. xii. t. 727, f. 1432. 



Nyman, 336. Fl. Oxf. 152. 



1 See a paper on this form by P. Ascherson in Berichte der DeutscJien Botan. 

 Gesellscha/t (Sep. 1892) 1893, pp. 29-42. 



