BOTANY 



Species worthy of Special Notice 



{Those unique in division in larger type) 



T'halictrum CoU'mum : Lakenheath and several other spots in the Breck district. 

 Further examination of examples of this plant is desirable. Anemotie Pulsatilla : New- 

 market and near Cavenham and Saxham, but no recent records. A typical chalk plant, 

 growing only where that formation is exposed, of Watson's Germanic (or Eastern) type. 

 Fumaria densiflora grows about Higham and Mildenhall. \Sisymbriutn Irio is recorded 

 from Bury and Gazely ; it is called London Rocket, because it sprang up plentifully after the 

 Fire of 1666, although known in that neighbourhood before that date. Reported from about 

 a dozen counties, but it is perhaps sporadic except about Berwick, Dublin, and in the Channel 

 Isles.] Polygala serpyllacea, var. ciliata, grows at Elveden and Knettishall, a scarce 

 form only occurring elsewhere in Cambridgeshire and Sussex. Diatlthus deltoides : 

 Many localities in the Breck district. Silene Otltes, a dioecious generally wind- 

 fertilized plant (unusual in Si/ene), occurs in many spots in the Breck district and on 

 Newmarket Heath, where it was first recorded for England in 1650. Known only from 

 Suffolk, Norfolk, and Cambridgeshire. S. conica^ of Watson's Germanic type, has its head quarters 

 in the county in the Breck district, but also occurs in Division III. Holosteum umhellatum is an 

 interesting species (Germanic) that grows (or grew) upon old walls and thatched roofs at 

 Bury. First noticed there in 1773, last in 1855. An extremely rare early flowering species, 

 known only until quite recently from Norfolk and Suffolk, but found in Surrey in 1905 on 

 old walls and sandy places, and it may be overlooked in other spots on account of its being 

 usually quite burnt up by May (see Journ. Bat. 1905, p. 189). Arenaria tenuifolia grows in 

 many places in the Breck country, and its two varieties, laxa and hybrida occur with it 

 occasionally. LtnUfn perenne, handsomest of all the flax family, is Germanic in type ; it 

 seems confined to the Ixworth and Bury districts. Genista pilosa may be seen in several 

 spots in the Breck district, and was found at Icklingham in 1771, when it was new to England. 

 Known besides only from Cornwall, Sussex, Kent, and Pembrokeshire. Medicago sylvestris 

 seems to be peculiar to Suffolk, Norfolk, and Cambridgeshire, and was first found in England, near 

 Bury, in 1805. It grows in several other places in the Breck district, and is supposed by 

 many botanists to be a hybrid between sativa and fakata, and its flowers, often green-tinged, 

 seem to be a blend of the purple flowers of the former and yellow of the latter. M. falcata, 

 as a true native, is also quite an East Anglian species, occurring only in the three counties 

 mentioned above ; it is found in many localities in this district, chiefly in the Breck country. 

 M. minima, a species restricted to the south-east of England, and Astragalus datUCUS 

 occur at Newmarket and in many other places in the Breck district. Lathyrus palustris has 

 been found at Lakenheath and Tuddenham ; it is a decreasing plant in England, with a wide- 

 spread distribution, not reaching, however, higher than Yorkshire (see Trans. Norf. and 

 Norw. Nat. Soc. vii, 472). {L. montanus should be searched for anew in the county ; it is 

 reported very doubtfully from Honington, and is known for Essex and Norfolk, but not for 

 Cambridgeshire.) Potetltllla vema grows in several spots in a limited area around Cavenham 

 and West Stow. Akhemilla vulgaris : Between Lidgate and Cowlinge. Poterium officinale : 

 Thelnetham and Hinderclay Fens, and at Lakenheath. Geum intermedium : Stanton and 

 Bradfield St. George. Sedum reflexum, var. albescens : A scarce plant of dry hills and 

 lieaths ; the type naturalized and common, the variety wild at Mildenhall and near Torquay. 

 Drosera anglica : Mildenhall and Redgrave districts ; the hybrid D. obovata {anglica 

 X rotundifolia) occurs at Redgrave. Lythrum hyssopifoUa is a rare and uncertain annual, 

 and has not been seen in Suffolk for many years ; it formerly grew at Bury, Barrow Bottom, 

 and east of Barton Mere. Peucedanum palustre is an interesting Fen plant, occurring about 

 Mildenhall, with a limited distribution in Britain [Naturalist, 1901, p. 267 ; Trans. Norf. and 

 Norw. Nat. Soc. vii, 467). Larvae of the Swallow-tailed Butterfly are very partial to its foliage. 

 Oeyianthe silaifolia occurs near Bury. Caucalis latifolia, an uncertain cornfield weed, 

 has not been seen in its recorded stations — Saxham and Newmarket — for many years. 

 Galium anglicum is a scarce delicate annual or biennial found in sandy places and on walls, 



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