38 



The Scottish Naturalist. 



Oarex binervis L.— A small and very slender variety, having 

 much resemblance to some species of the frigida section, occurs 

 among rocks by the ravine of the Neugles-Water Burn. 



0. flava L. var. genuina Towns. The typical plant was met 

 with for the first time by a ditch running into the upper end of 

 Tingwall Loch. 



+ C. CEderi Ehrh. — Plentiful on the stony shore of a loch 

 above Bur Wick, near Scailoway. On this plant Mr. Bennett re- 

 marks : " Very near, if not the same as, /?. pygmaea Anders. 

 Cyp. Scand., p. 25." 



Aira caryophyllea L. — One of the records previously men- 

 tioned as requiring confirmation. I found a single plant on a 

 bank by a cornfield between Scalloway and Tingwall. 



Avena pubescens L. — This was abundant in Tate's Station, 

 the ravine of Sundabanks. 



* Glyceria distans Wahl. var. prostrata m. (Atropis 

 distans Griseb. var. prostrata Hackel in litt.). — Scattered abun- 

 dantly over the stony shore of Hildasay Island, about the landing- 

 place. Prof. Hackel reports : "Is no doubt a variety of Atropis 

 distans Griseb.; but it does not fully agree with any of the pub- 

 lished forms of that species. It comes very near var. ivstuosa 

 Sonder, also near var. pulvinata Fries ; but neither of these is said 

 to be quite prostrate. You may best call it a proper variety (var. 

 prostrata)" Dr. Lange has also kindly reported as follows : 

 " Non G. distans esse mihi videtur, potius Glyceria pseudo-distans 

 Crepin, nisi forte G. JBorreri Bab." My own feeling throughout 

 has been to refer this plant to G. distans, from which, however, it 

 certainly differs conspicuously in some respects. The plant is 

 quite prostrate, so much so that even the very panicle is adpressed 

 flat to the ground, the panicle-branches ascending in flower, more 

 or less spreading in fruit, but apparently never deflexed. I hope 

 to grow it from seed. 



Dactylis glomerata L. — Also mentioned formerly as in 

 want of confirmation. A couple of plants were seen by me beside 

 a cornfield between Scalloway and Tingwall ; and numerous 

 plants in a piece of natural pasture at Scalloway. The former 

 plants were probably introduced ; and the second locality is so 

 closely surrounded by cultivated ground that it is impossible to 

 say whether the plants were truly wild or not. Dr. Boswell re- 

 garded it as introduced in Orkney. (Fortescue's List.) 



