l62 ROSACEAE 



in plantations and shrubberies, but with no claims to be considered a 

 native plant of this or either of the bordering counties, with the doubtful 

 exception of E. Gloucestershire.] 



SPIRAEA, Linn. Gen. n. 554 (Tournefort, Inst. t. 389). 

 S. Ulmaria, Linn. Sp. PL 490 (1753). Meadow Sweet. 



Ulmaria, J. Bauhin, Hist. ill. 488. Regina prati, Ger. Em. 1043. 

 Top. Bot. 129. Syme, E. B. iii. 126, t, 415. Nyman, 215. Fl. Oxf. 93. 

 Native. Pratal. Moist meadows, sides of ditches, open moist places 

 in woods. Very common in the low meadows by all our water- 

 courses, but necessarily less frequent on the central Chalk plateau 

 and on the dry heathy tracts of the south-west. P. May-Sept. 

 First record. Sonning, Mr. S. Budge in Herb. Brit. Mus. 1800. S. ulmaria, 

 Mavors Agr. Berks, 1809. 

 Var. DISCOLOR, Koch, Syii. Fl. Germ. ed. 2, i. 231 (1843) {S. gJauca, 

 Schultz, Prod. Fl. Starg. Suppl. i. 26), the generally distributed form, 

 in which the radical and stem leaves are white-tomentose on the under- 

 surface. 



Var. DENUDATA, Boenn. Prod. Fl. Monast. 146 (1824) (S. demidata, 

 Presl, Fl. Cech. loi, 1819), with stem leaves green on the under- 

 surface, is apparently of rai-e occurrence. 



' Through the Wytham fiats, 

 Ked loosestrife and blond meadow-sweet among, 

 We tracked the shy Thames shore.' — M. Arnold. 

 S. Ulmaria is found commonly in all the bordering counties. 



**S. CHAMAEDRTFOLiA, Liuu. Sp. PI. 489 (1753). Bot. Eegister, t. 1222 (1829). 



An alien collected by Mr. Baxter in a hedge at South Hinksey in 1830, where, 

 if not planted, it must have been a garden escape. 



S. Pilipendula, Linn. Sp. PI. 490 (1753). Bropwort. 

 Filipendula vulgaris, C. B. Pin. 163. 



Top. Bot. 129. Syme, E. B. iii. 128, t. 416. Nyman, 215. Fl. Oxf. 93. 



Native. Pascual. Dry pastures, chalk downs, &c. Widely distributed 

 and locally abundant, especially on the grassy chalk downs ; it 

 is practically absent from the Oxford Clay, and is, of course, 

 scarce where the soil is used for arable purposes, or of a clayey 

 character. It prefers sunny situations. P. May-August. 



First record. S. filipendula, Dr. Noehden in Mavor's Agr. Berks, 1809. 



1. Isis. Idstone. 



2. Ock. Common on Blewbury Downs, Lousley in Russell's Cat. 



Tubney, Walker. Kadley Common, Boswell. Dench worth, Wait. 

 Abundant in fields between Didcot and Steventon. Cherbury 

 Camp. Abundant on the northern escarpment of the Chalk 

 from Lowbury by Wantage, Letcombe, White Horse Hill, &c. 

 Frilford. Besilsleigh. Steventon. 



