XU EXPLANATION OF THE PLATES. 



Plate IV. Fig. 1. Hieracium prenanthoides. Fig. 2. Hieraeium umbel- 

 latum. — These figures of our Hieraeia are reduced, but very exaet, 

 copies of specimens collected in the Eastern Borders ; and may assist 

 the student in ascertaining the species, as we understand them. 

 Plate V. Fig. 1. The seed of Tragopogon minor. [It is, by an error, 

 major on the plate.] Fig. 2. The seed of Helminthia or Picris 

 echioides. Fig. 3. The seed of Tussilago farfara. Figs. 4 & 5. The 

 Scotch Thistle as represented on two coins of James V. Fig. 6. The 

 germen and styles of Statice armeria. 

 Plate VI. Fig. 1. The floret of Tussilago petasites. Fig. 2. The seed of 

 Centaurea cyanus. Fig. 3. The seed of Bidens cemua, misprinted 

 cornua on the plate. Fig. 4. The filament of Anagallis tenella. 

 Fig. 5. The flower of Callitriche verna. 

 Plate VII. A plan of Holy-Island. For this I am indebted to Mr. John 



Lowrey. 



Plate VIII. A view of the engraved rock at the Routing Linn near Ford. 



See page 254. The drawing was made by Mr. D. Knight, and I am 



mdebted for its use to the Rev. Wm. Greenfell. 



Plate IX. Agaricus caperatus, from specimens sent to me by Miss Hunter. 



Plate X. Fig. 1. Agaricus Belbae, of the natural size. a. A longitudinal 



section of the pileus. b. A section of the stem. c. The spores. 



Fig. 2. Uredo or Ustilago hypodytes, natm-al size : a. In a veiy early 



stage when the mycelium is white with a curd-like consistence ; 



o X . From the base of the sheath of the grass, when extremely tender 



and pale ; b. In maturity ; u. Mature spores. 



Plate XI. Fig. 1. Dothidea Johnstoui : a, asci; b, b, sporidia; c, hairs 



from surface. Fig. 2. Phlyctaena Johnstoni : a, spores and sporo- 



phores. Fig. 3. Peziza Johnstoni : b, cup seen from above with its 



inflected border; c, hairs of cubiculum strongly matted. Fig. 4. 



Stemonitis violacea, nat. size : a, a separate plant ; the peridium 



growing from the tip of the leaf with which its stalk is confluent; 



b, peridium ruptured, showing the percurrent stem and the origin of 



the flocci ; c, the flocci and spores. 



Plate XII. Stigmaria ficoides. The compressed rootlets. See page 299. 



Plate XIII. Fig. I. Filicites striatus. Fig. 2. Lepidodendron oblongum. 



Fig. 3. Lep. fusiforme. Fig. 4. Filicites intercostatus. Fig. 5. Poa- 



cites nervosa. Fig. 6. Crinites lanceolata. Fig. 7- Carpolithes 



ovatus. Fig. 8. Coniferetes ? verticillatus. Fig. 9. Bechera simplex. 



