POLYSTICHUM 607 



Native. Sylvestral, &c. Woods, hedge-banks, old quarries, and brick- 

 work of village wells. Eare. P. July-September. 



First record. A rare plant on the sides of some of the wells, Mr. J. 

 Lousley in Russell's Cat. 1839. 



1. Isis. Shrivenham. Ferry Hinksey. Wytham. * 



2. Ock. Marcham, Walker. At Blewbury, Hagborne, Lousley, 



Planted at Lockinge. Near Wantage. 



3. Pang. At Langley. Great House, Hampstead Norris, Lousley. 



4. Kennet. Aldermaston. (' Marygreen, in the village well,' Thos. 



Hardy ; evidently Fawley is meant. 



5. Loddon. Koyal Military College Grounds, A. Grey in Wellington 



Coll. List. Long Moor. Windsor Park. 

 Scolopendrium is recorded for all the bordering counties. 



[Ctstopteris fragilis, Bernli. in Sclirad. Journ. i. (1806) 26. Brittle Bladder 

 Fern. 



Polypodium fragile., Linn. Sp. PI. 1091 (1753). 



Syme, E. B. xii. 108, t. 1864. Is recorded for Oxfordshire and Surrey, but 

 with sorae doubts as to its being native there. It is a native of Gloucester- 

 shire.] 



POLYSTICHUM, Roth, Tent. Fl. Germ. iii. 79 (1800). 

 P. aculeatuni, Roth, 1. c. Prickly Shield Fern. 



Aspidium aculeatum, Willd. Sp. PI. v. 258. Polypodiiim aculeatum, Linn. 



Sp. PI. 1090 (1753). 

 Top. Bot. 513. Syme, E.B. xii. 93, t. i860. Nyman, 865. Fl. Oxf. 360. 

 Native. Septal. Woods and shady hedge-banks. Local and rather 



rare. P. July-August. 

 First recorded, but without a locality, by Mr. T. B. Flower in Fohert- 



son's Env. of Reading, 1843. 



3. Pang. Near Basildon. 



4. Kennet. Burghfield. Inkpen. Near Aldermaston. Near West 



Woodhay. 



5. Loddon. Near Whistley Mill. Near Thatcher's Ford. 



Var. LOBATXJM {Polypodium lobatum, Huds. Fl. Angl. 459. Aspidium 

 lobatum, Swartz, in Schrad. Journ. ii. (1800) 37). 



4. Kennet. Near Inkpen. Near West Woodhay. 



5. Loddon. Included in the Wellington College List. Finchampstead. 



The following letter accompanied specimens sent by Mr. Eeeks to the 

 Linnean Society : — 



' North End, East Woodhay, Mar. 14, 1871. I have sent for exhibition a small 

 series of the common Aspidium, from that of simple Lonchitis form to that 

 of the more highly developed subtripinnatiXm. With the exception of one or 

 two specimens at the end of the series, which are more intimately connected 

 with the form called angulare, all the fronds are fully fructified, at any 

 rate sufficiently so to reproduce their respective forms from seed. I have 

 commenced the series with the lowest, or least perfectly developed forms of 

 aculeatum^ and traced them up to that having perfectly stalked pinnules, 



