BRITISH FERNS. 
18 
No. s. d. 
Lastrea Presl. 
284 Thelypteris Bory — Marsh Fern Is. to 1 6 
This beautiful deciduous fern requires a peaty soil, continuously 
moist. Its delicate-looking , yelloivish- green fronds make a charming 
variation from the darker green of other ferns. 
Ophioglossum L. 
285 vulgatum L . — Common Adder’s Tongue 0 9 
The Adder’s Tongue is found flourishing in a variety of soils. It 
has, perhaps, a preference for strong loam. Keep moderately moist. 
Deciduous. 
Osmunda L- 
286 regalis A.— Royal Fern, or Osmund Royal Is. 6d. to 2 6 
287 — cristata M . — a most beautifully crested variety, apparently little 
inferior in size to the species ( regalis ) as usually seen. A great 
acquisition to the hardy fernery 2s. 6d. to 10 6 
288 — furcans 2 6 
289 — pallida M. 7 6 
290 — purpurascens M. 7 6 
This truly royal species — one of the handsomest — requires but little 
care in cultivation. Planted in peaty soil and allowed abundance of 
moisture, it groins with much freedom. In pot culture, give plenty of 
pot-room. As the Royal Fern is a true bog-plant, drainage at the 
bottom of the pot may give place to sphagnum. The species is well 
known to be deciduous. 
Polypodium A. 
291 alpestre Hoppe — (Pseudathyrium alpestre Newman ) — Alpine Poly- 
pody Is. 6d. to 2 6 
292 — flexile M . — fronds 8 to 12 inches long and upwards, narrow, lax, 
pinnae reflexed, pinnules distantly toothed; the symmetrical, rayed 
arrangement of the fronds gives a well-grown plant the appearance 
of a vegetable star. The delicacy of its parts and its peculiar habit 
render this variety extremely beautiful, and unique amongst small- 
growing ferns 2s. to 3 6 
Plant in a compost of loam, turfy peat, leaf-mould and silver -sand ; 
the caudex may be inserted between small pieces of sandstone. Drain 
carefully , and give somewhat over the average of moisture in the 
period of growth. No 292 is generally cultivated in pots in the 
greenhouse, and when so grown makes a very beautiful object. The 
species is a deciduous one. 
293 Dryapteris L. — Smooth-branched Polypody, or Oak Fern 1 0 
294 Phegopteris L . — Mountain Polypody, or Beech Fern 1 0 
295 — interruptum Sim 2 6 
296 — minus M. 2 6 
Plant in a moist, shady nook of the rockery, using a compost of 
fibrous peat, leaf -mould, and silver -sand; it is important to drain well. 
In pot culture use shallow pots or pans half, or more than half, filled 
with drainage. Can anything be more lovely than a pan of the Oak 
Fern well grown — an unbroken mass of delicate fronds of the softest 
green imaginable ! The two species are deciduous. 
297 Robertianum Hoff, (calcareum Smith ) — Limestone Polypody 1 0 
In planting this handsome deciduous species, add to the compost 
last named, bits of limestone, or a quantity of old, crumbled mortar, or 
both ; perfect drainage in this, as in the case of the two last-named 
species, is of the greatest importance. 
