480 ORCHIDACEAE 



H. viridis, R Br. in Ait. Hort. Kew, ed. 2, v. 192 (1813). Frog Orchis. 



Sah/rium riride, Linn. Sp. PI. 944 (1753^. Coeloglossum viride, Hartm. 

 Handh. Skand. Fl. ed. i, 329. 



Top. Bot. 392. Syme. E. B. ix. 105. t. 1462. Nyman, 696. Fl. Oxf. 297. 

 Native. Pascual. Chalk downs, pastures, heaths. Locally common. 



P. June-September. 

 First record. Orchis Bafrachites, Frog Satyrion, iHoio's] Phyt. Brit 82. 



1650. 

 See also Merrett's Pinax. 85, 1666. Probably Brownes MS. in a copy 

 of the Phyt. Brit, written before 1659, of 0. Anihropophora, &c., refers to 

 this species. 



1. Isis. In many places about Oxford, Hmc. Downs near Ashbury. 



Idstone. Cumnor. 



2. Ock. Meadows near Oxford, Baxter in Purt. Midi. Fl. Near Sand- 



ford Lock, Rev. T. 0. Marshall. Sparsholt, Bellamy. Wantage, 

 Bicheno. By the side of Bagley Wood. Thurland. On downs 

 north of the Ridgeway between Gore Hill and Cuckhamsley, 

 Sewett. Radley. Blewburton. Chilton. Lowbury. Downs 

 above Lockinge. Letcombe Castle. Uffington. Rather common 

 on the chalk escarpment. 



3. Pang. ]lsley Downs, Heicetf's Hist Unwell Downs, Sister Jane 



Frances. Abundant on Moulsford Downs. King Standing Hill. 

 Lowbury. Streatley. 



4. Kennet. Near Shaw. Letcombe. Lambourn Downs. Gibbet 



Hill, over 900 feet. 



Yar. brer ibracteata = Orchis viridis, var. brevihracteata, Brebisson, Fl. 

 Normandie. 311. The northern mountain form has frequently the 

 bracts longer than the flowers, in this they are short or absent. The 

 two forms are worthy of notice. 



H. viridis is recorded for all the bordering counties. 



H. bifolia, R. Br. in Ait. Hort. Kew. ed. 2, v. 193 (1813). Smaller 



Butterfly Orchis. 

 Orchis bifolia, Linn. Sp. PI. 939. 

 The first record of the aggregate plant appears to be Orchis sphegodes 



major et tninor, in many places about Oxford, in Merrett's Pinax, 1666. 



See also Sm. Engl. Fl. iv. 44, 1828. Orchis bifolia, Dr. Noehden 



and Mr. Bicheno in Mavor's Agr. Berks, 1809. 

 H. bifolia, true. Top. Bot. 390. Syme, E. B. ix. 105. t. 1464, but 



erroneously lettered H. chlorantha on the plate. Nyman, 696. 



Fl. Oxf. 297. Native. Sylvestral. Woods. Local. P. June-July. 

 First record for true H. bifolia, the author, in Flora of Oxfordshire, 1886. 



1. Isis. Wylham Wood. 



2. Ock. Baglev Wood. 



