APPENDIX. 255 



JUNCACEJE. 



LtfzuLA. Woodrush. 



L. SPICATA, D.C. Rootstalk slender, stolons, short. Stems 

 slender, 6 12 in. Le. short, hairy on sheath, recurved, narrow 

 channelled ; cauline few, short. Cymes drooping, short, spike- 

 like. Bracts silvery. Fl. | in. shorter than bracts, but longer 

 than the elipsoid apiculate capsule. Seeds oblong, with an 

 obscure white basal appendage. 



Very rare. Mountain heaths. (H) P. 67. Ben Voirlich. 



ALISMACEJE. 



BtJTOMUS. Flowering Rush. 



* B. UMBELLA.TUS, L. Eootstalk stout ; le. 3-quetrous, 3 4 ft. 

 base sheathing twisted. Fl. many, umbellate, 1 in. diam., rose- 

 colour. Stamens 9, anthers red, carpels 6, beaked, stigma sessile 

 red, follicles 6. 



Very rare. Marshes (E) P. 57. Possil marsh, Ingles and Hogarth. 



TYPHACEJS. 



SpARGiNiUM. Bur-reed. 



S. NATANS, L. Stem floating, 13 ft., suberect in flower, 

 leafy, flaccid. Le. J in. diam. , flat. Heads racemose, stigma 

 tongue-shaped, drupe stalked, beak long. 



Very rare. Ditches, lochs. (H) P. 89. Loch Oss. 



PILICES. 



AspfDiUM. Holly-fern. 



A. LONCHITIS, Sw. Rootstalk tufted, oblique, scaly. Fronds 

 linear-oblong, pinnate, tufted, 6 24 in., bright green, coriaceous, 

 glabrous except on scaly stipes, rachis and veins beneath. Pinnae 

 many, J 1 in., ovate, base auricled and obliquely rhomboid, 

 falcate, acuminate, spinuloso-serrate. Sori on 2 3 rows on each 

 side of midrib. 



Very rare. Alpine rocks. (H) P. 38. Very luxuriant on Ben Lomond. 

 Ben Vorlich dwarf. 



PT&RIS. Bracken. 



P. GRACILE, Paterson. Rootstalk delicate, subterranean, 

 creeping. Stipes 1 2 ft. , thin, pale green at the base. Fronds 

 very delicate, 2-pinuate, pubescent ; pinnules sessile ; veins free, 

 2-forked ; sori not known. Perhaps a delicate variety of P. 

 AQUILINA. 



Very rare. Woods in glens. (S) P. 58. Glen Rosa, Arran. 



