RUBUS 163 



3. Pang. Streatley, PampUn. Hslej Downs, Lousley. llslej [Heweti], 



1840, Herb. Brit. Mus. Abundant on Moulsford, Streatley, and 

 Compton Downs. Sulham. Tilehurst, &c, 



4. Kennet. Lambourn. Downs of West Ilsley and White Horse. 



Gibbet Hill. Farnborough. 



5. Loddon. Meadow by the river between Bisham Wood and Mar- 



low, abundant. Mill. Park Place. Near Hurley. Quarry Wood. 

 S. Filipendula occurs in all the bordering counties. 



RUBUS, Linn. Gen. n. 557 (Tournefort, Inst. t. 385). 

 R. idaeus, Linn. Sp. PI. 492 (1753). Raspherry. 



Top. Bot. 136. Syine, E. B. ii. 160, t. 442. Nyman, 215. Fl. Oxf. 93-4. 

 Native. Ericetal. Heaths, coppices on a sandy and gravelly soil. 

 Widely distributed, occurring in all the districts, and locally 

 common. It ascends nearly to the top of Walbury Camp, and is 

 found on the Letcombe Downs at nearly 800 feet, where the Chalk 

 is covered with brick-earth, and in Wayland Smith's Copse. 

 Shrub. June-July. 

 First record. R. idaeus in Mavor's Agr. Berks, 1809. Ilsley Downs, 

 Pinnock's History, 1819. 

 Var. ANOMALus, Arrhen. Eub. Suec. 14 (1839% Var. obtusifolius 

 (Willd. Berl. Baumz. ed. 2, 409 (1811) as a species), Focke in Gard. 

 Chron. xx. (1883) 150. R. Leesii, Bab. Man. Brit. Bot. ed. 5, 97 (1846). 

 Syme, E. B. iii. 161, t. 443. Lees in Phyt. iv. (1853) 930. 



2. Ock. Near to the top of Boar's Hill, Dyer in Britt. Contr. 1871, and 

 in Herb. Brit. Mus. 1867. 



This plant is of considerable taxonomic interest. The carpels remain 

 open, so that the ovules are exposed and rarely ripen, but Dr. Focke has 

 succeeded in raising a few seedlings, which have the characteristic foliage of 

 the parent. ... In the Gardener^s Chronicle, xx. (1883) 150, 214, 276, and 342, an 

 extraordinary origin was claimed for the var. anomalus, namely, that it was 

 a hybrid of the Raspberry and the Strawberry. Mr. Culverwell says he 

 raised this plant from seeds of the Raspberry which had been fertilized by 

 pollen of the Strawberry, all proper precautions having been taken to prevent 

 fertilization with Raspberry pollen. Dr. Focke does not, I believe, agree 

 with this suggested origin of the plant. 



Var. ASPERKiMus, Lees, in Steele, Handb. Field Botany, 60 (1847). 

 A form which comes under this variety occurs on Frilford Heath and 

 near Hermitage, and another form approaching it occurs in Hen Wood. 



Var. iNEEMis, Pryor, Fl. Hertf. 128 (1887), is found on Greenham 

 Common, Sandhurst, &c. 



R. idaeus occurs in all the bordering counties, and the var. anomalus 

 in Oxfordshire. 



R. fissus, Lindley, Syn. ed. 2, 92 (1835). Syme, E. B. 165. Rogers' Key, 2. 

 Native. Ericetal. Heathy woods and open spaces in upland situations. 

 Very local. Bush. July-September. 



M 2 



