1909 



Druce. — Notes on Irish Plants. 211 



Taraxacum laevigatum, DC, var. crythrospcrmum (Andr.)— 

 Black Head, 9; Lough rea, 15 ; Wicklow, 20. 



Tragopogron pratensis, Iv. — Ardrahan, 15. 



Staticc Itnearifolia, Lat.-- Black Head, 9; Galway, 16; vSligo Bay 

 28 ; Wicklow, 20. 



•j-Symphytuin pyrcgri num, L/cdeb. — Three miles from Sligo, to- 

 wards Ben Bnlbeii, alien, 28. 



Cuscuta Epithymum, Murray. — Either this or C. Tn'folii growsin a. 

 pasture about a mile south of Black Head, 9. It was not yet flower- 

 ing when I saw it. 



Veronica montana, L. — ' Punchbowl " woods, Gort, 15. 



Euphrasia Rostkovlana, Hayne. — Ballyvaughan, 9. 



IVIentha piperita, L.— Ballyvaughan, shown me by Mr. P. B. O'Kelly. 



IVI. verticil lata, Huds.— As a small, quite glabrous, non-odorous form 

 at Garryland, 15. 



*Lamium hybrlduin, Vill. — Near Murrough, 9. 



Ulmus stricta, Iviudl. — Under this probably come the small-leaved 

 strict-branched trees near Gort, 15. 



U. campestris, L. {U. montana, Stokes).— Dalystown, 15. 



fPopuIus nigra, Iv. — The true Italian species in the common Irish 

 tree, I saw it in divisions 9, 15, 16, 17, 20, 21, 25, and near Tuani, 26. 



*tP- deltofdea. Marsh (/'. w^;///z/i?ra, Ait.)— Near Gort, 15. 



Orchis mascula, L. — Often grows on very dry calcareous pastures in 

 Clare and Galway. It varies much in colour and also in the cutting 

 of the perianth lobes. 



O. maculata, L, var. O' Kelly i (nov. var.) — This plant, which has been 

 known to Mr. P. B. O'Kelly for many years, he pointed out to me in 

 the immature condition. He has since sent me fresh specimens, 

 which have confirmed my view as to its distinctness as a variety or 

 sub-species of 0. viaciilata. It is quite frequent over a large area of 

 limestone country about Ballyvaughan, Co. Clare, and retains its 

 character under cultivation in different soil. It may be diagnosed 

 as follows : — 



Plant 9-14 inches high. Root-tubers two, each deeply divided into two 

 spreading recurved fleshy parts. Leaves long, keeled, very narrow, 

 not acute, spotted, pale green. Flowers in a dense oblong-cylindric 

 blunt (not tapering) spike. Bracts shorter than the flowers, and incon- 

 spicuous. Flowers pure white, smaller than in f?iaciclata. Three seg- 

 ments of the labellum narrow, oblong, sub-acute ; the middle segment 

 longer and as broad as the lateral. Flowering in July. From O. ma':ulata 

 it differs by its unspotted and narrower leaves and pure white flowers, 

 which are also slightl}' firmer in texture ; by its oblong-cylindric blunt 

 spike, and by the shape of the flowers. From the variety /ner^;f of O. 

 maadata {0. ericeiorzi?n, Linton), it is still more removed b}' the above 

 characters. Perhaps they are both soil varieties; one, with its 

 narrower leaves and different-shaped spike, being limited to dis- 

 tinctly calcareous soils, with more complete drainage ; the other, 

 which flowers earlier, with its very broad labellum, in which the 



A 2 



