juNcus 501 



Native. Uliginal. Moist heaths, boggy places, ditches, and ponds in 

 heathy situations. Locally abundant. P. June-August. 



Fix'st record, Juncus bulbosus [a var. of 434, 11, of Ray, Syn. 1724] 

 grows in great plenty in the Peat bog near Sunning-hill in Berk- 

 shire, Dr. Light/oofs MSS. 1780. Near Oxford, Sir Joseioh Banks, 

 1760, and Bulmarsh Heath, Mr. S. Budge, 1800, in Herb. Brit. Mus. 

 Published as J. uliginosus, Snelsmore Common, RusseWs Cat. 1839. 



1. Isis. Wytham. 



2. Ock. Bagley Wood, Baxter, 1840, m Heib. Oxf. Near the Rifle 



Range on Boar's Hill. Cothill. 



3. Pang. Betty's Wood, Tidmarsh, Tufnail. Bucklebury. Oare 



Common. Cold Ash Common. Fence Wood. 



4. Kennet. Snelsmore Common, Russell, I. c. Greenham. Burgh- 



field. Mortimer. Aldermaston. Padworth. Ufton. Hamp- 

 stead Marshall. Inkpen. Wickham, &c. Common in the 

 south of the district. 



5. Loddon. Buhnarsh Heath, Rudge. Cookham Dean. Mill. Warren 



Row, Stanton. Sunninghill, Lightfoot. Bracknell. Wokingham. 



Ascot. Long Moor. Sandhurst. Ambarrow. Finchampstead. 



Easthampstead. Windsor Great Park and Virginia Water. 



Very abundant in a pond on the south side of the road about 



a mile east of Wellington College Station. Common and 



generally distributed over the district covered with the Bagshot 



Sands, also on Pinkney's Green. 

 J. bulbosus is a polymorphic species. There is an immense range of 

 form exhibited in its various states. At one end of the series we have 

 what we may consider the type in an erect, short-stemmed plant, 

 which is often swollen at the base ; this is the Juncus supinus, var. 

 NODOsus, Lange, PI. Exs. n. 144 (i860) ; it occurs in dry heathy ground, 

 as at Bracknell, Mortimer, Sandhurst, Aldermaston, &c. A second 

 form is one which is rather frequently found by the margins of peaty 

 pools into which the plant extends in a floating condition, and is 

 usually viviparous ; this is the var. viviparus (Sibth. Fl. Oxon. 115, as 

 a var. of J. uliginosus), and is rather frequent over the heathy tract, 

 as at Snelsmore, Sandhurst, Aldermaston, Burghfield, Mortimer, East- 

 hampstead, Bracknell, Windsor Park, &c. A third form, with a creep- 

 ing rooting stem, is var. uliginosus (Fries, as a var. of J. supinus], 

 and is also frequently found in a viviparous condition ; it occurs in 

 the heathy districts, as at Long Moor, Sandhurst, Sunningdale, 

 Mortimer, &c. 



The extreme form, J. /luitans, Lam. Enc. Meth. iii. 271 (1789), figured 

 in Fl. Batava, xviii. t. 1477, is not found in its most typical form in 

 Berkshire— at least not in that finely drawn out state in which it 

 occurs in some of the Scotch and Irish streams ; but plants whicli 



