29 



reticulations, pale green. Spike about 2 inches long. Peduncle very long, often I 

 foot or more, curved, solitary. Nut compressed, with 1 large central and 2 smaller 

 keels upon the back when dry, but rounded when wet. 



Orobanche barhata, Poir. Sepals with 1 prominent nerve and se- 

 veral faint ones, ovate, with a long subulate point, or bifid, as long as 

 the bent tube of the corolla; lips of corolla obscurely denticulated and 

 wavy, upper 2-lobed, lower with 3 nearly equal lobes, central one long- 

 est ; stamens inserted near the bottom of the tube, glabrous except at 

 the base within ; style glabrous, minutely downy above : tab. 2859. 



Parasitical upon Hedera Helix. 



St. Ives, Cornwall. Berry Head, Torquay and Combe Martin, Devonshire. On 

 Worle Hill by Weston-super-Mare, Somersetshire. Bannouth and Oystermouth Cas- 

 tle, near Swansea, in Wales. Lexlip Castle and Mucruss Abbey, Ireland. Isle of 

 Wight. Guernsey. 



Usually confounded with O. minor, t. 422, which, independently of all structural 

 differences, is as as constantly parasitical upon Trifolium pratense as this is upon He- 

 dera Helix. Stem 6 — 18 inches high, glandular-pubescent, purple. Corolla cream- 

 coloured with prominent purple nerves, ultimately reddish-brown, externally glandular; 

 margins of upper lip deflexed, of the lower one incurved. Stigma slightly 2-lobed, its 

 disk yellow. 



Atriplex deltoidea, Bab. Stem erect, herbaceous, with ascending 

 branches ; leaves all hastato- triangular, unequally toothed, opposite ; 

 enlarged calyces ovate-triangular, toothed, tuberculated on the back, 

 longer than the fruit, arranged in a compound, many-flowered pani- 

 cle; seeds smooth and shining: tab. 2860. 



Waste places ; not uncommon. 



Primrose Hill, near London. Leicestershire. Kent. Shropshire. Guernsey. Sark, 



Distinguished from A. patida by not having its upper leaves entire, its enlarged 

 calyx not triangularly rhomboid and entire, its spikes not interrupted and simple, nor 

 its branches elongated, its fruit smooth and shining, not opaque and rough. 



Lecidea Salweii, Borr. Thallus of small, white, depressed, bluntly- 

 lobed, tumid, tartareous scales ; patellulas superficial, slightly raised, 

 lurid-brown, margin paler, narrow, flexuous ; substratum thick, pale : 

 tab. 2861. 



On the ground, in rocky situations. 



Craig Breiddin, Montgomeryshire ; near Drws y Nant-Isaf by the road from Bala 

 to Dolgelly, and above Gelli-rhudd near Barmouth; above Twll-du : all in North 

 Wales. Near Sennen, Cornwall. In the Valley of Rocks at Linton, North Devon. 

 Priest-Leap Mountain near Dunkerron, Ireland. 



Patches of iiTegular outline and considerable extent, composed of scales rarely a 

 quarter of an inch over, closely attached to the substance on which it grows. Patel- 

 lulcE about the size of poppy-seed, produced upon the scales, not in the interstices ; 

 slightly elevated, often clustered. 



Nearly allied to Lichen quadricolor, t. 1185, and Lichen glebulosus, t. 1955, parti- 

 cularly the latter. Referable to the genus Biatora of Fries. Named after its disco- 

 verer, that accurate lichenologist, The Rev. Thomas Salwey, of Oswestry, Shropshire. 



