78 ENGLISH BOTANY. 



but sometimes confined to its upper half, attached to the back of the 

 anterior branch of the ultimate veins, forming a line on each side of 

 the midrib of the ultimate segment of the pinnule nearer the midrib 

 than the margin of the pinnule or segment as the case may be. and 

 extending nearly to its apex. Indusium thin, soon shrivelling, sub- 

 persistent, roundish-reniform, flat, entire or remotely denticulate, 

 but without glands either on the margin or surface. Spores tuber- 

 culate, with sparse large rounded tubercles. No barren fronds unlike 

 the fertile ones. 



Yar. a. elevatum. 

 Aspidium spinulosum, var. elevatum, A. Braun. Milde, Fil. Europ. p. 133. 



Rachis without glands. Lamina firm, yellowish-green, without 

 glands, strapshaped or oblong-strapshaped, nearly parallel-sided. 

 Indusium nearly entire, without glands on the margin. 



Yar. /3. exaltatum. 

 Aspidium spinulosum, var. exaltatum, Lascli. Milde, Fil. Europ. p. 132. 



Rachis without glands. Lamina thin, deep green without glands, 

 oblong-lanceolate or ovate-lanceolate, more or less curved-sided. 

 Indusium nearly entire, without glands on the margin. 



Yar. y. decipiens. 



Rachis sprinkled with minute stalked glands. Lamina firm, 

 yellowish-green, with minute clavate glands beneath, oblong-strap- 

 shaped or lanceolate-oblong. Indusium dentate, with the teeth 

 usually without glands. 



Yar. a in bogs and on heaths. Yar. j3 in woods. Both forms 

 rather common, and generally distributed in England. More rare in 

 Scotland, and certainly occurring as far north as Aberdeen, Perth 

 and Inverness, and recorded as far north as Elgin, Ross and the Isle 

 of Lewis. Sparingly distributed throughout Ireland from south to 

 north. Yar. y, wood below Linley, near Broseley, Salop, Mr. Gr. 

 Moore (sub nom. " L. dilatata /B. glandulosa ") ; roadside between 

 Inver Cloy and Brodick Castle, Arran. Perhaps some of the forms 

 referred to L. glandulosa, which are said to have creeping caudices, 

 belong to this variety of spinulosa, though Mr. F. Clowes dis- 

 tinguishes ' glandulose spinulosa ' from ' glandulosa ' at Windermere. 



England, Scotland, Ireland. Perennial. Summer, Autumn. 



