August 11. 
THE COTTAGE GARDENER. 
369 
beautiful weed, so abundant on the shores of the Mediter¬ 
ranean, is rare on ours, and only found in the South of 
England. The fronds grow in tufts, from 2—5 inches high, 
and are all fan-shaped, which gives the plant a very striking 
appearance. The whole frond is marked with numerous 
concentric zones, and mostly covered with a whitish powdery 
substance on the under side; the margin is rolled back¬ 
wards, and fringed with extremely delicate reddish-brown 
filaments."— Harvey. 
4. ZONARIA. 
“ Root coated with woolly fibres; frond flat, ribless, fan¬ 
shaped, entire or cleft, marked with concentric lines; the 
cells radiating. Name from the Greek word for a girdle or 
zone.” 
Zonaria tarvula (Very small). — “On rocks; colour 
olivaceous-green.” 
5. TAONIA. 
Taonia atomaria (Dotted). — “Frond membranaceous, 
broadly wedge-shaped, deeply and irregularly cleft and 
lacineated; spores forming waved transverse lines, with 
intermediate scattered ones.”— Harvey. 
A rare and very beautiful -weed, found on rocks in the 
sea. East and South of England. The specimen from 
which our plate is taken came from Devonshire. The rich 
shades of olive-green, zoned with the dark marks, in waving 
lines, composed of the spores, form an unusually beautiful 
object. 
6. DICTYOTA. 
“ Frond flat, reticulated, membranaceous ; root a mass of 
woolly filaments; fructification composed of scattered or 
variously aggregated, somewhat prominent, seeds, on both 
surfaces of the frond. The name signifies network.”— 
Greville. 
Common. Summer. Varying much in colour and in the 
breadth of the fronds, which are from 3 —12 inches long. 
The handsomest specimens I have seen were from the Isle 
of Man, a rich yellow-olive. 
7. STILOPHORA. 
“ Root a small naked disk; frond filiform, solid or tu¬ 
bular, branched ; fructification convex wart - like sori 
scattered over the surface. Name, from two Greek words 
signifying a point, and to bear, in allusion to the dot-like 
fructification.”— Harvey. 
Stilophora rhizodes (Rooted).—“Common in the South 
of England. Colour yellowish-brown.” 
S. Lyngbyei. —Generally obtained by dredging. “ When 
fresh it is crisp and rigid, soon becoming soft. Colour 
olive-brown.” 
8. DICTYOSIPHON. 
“ Frond filiform, tubular, continuous, branched; root 
minutely scutate, naked; fructification solitary or aggre¬ 
gated naked spores, scattered irregularly over the surface. 
Name from two Greek words, signifying network and a 
tube.”— Greville. 
Dictyosipiion fceniculaceus (Fennel-like).—Very com¬ 
mon. The fronds are often many feet long, yellowish when 
young, of a rusty brown, and rather coarse, when old. 
9. STRIARIA. 
“Frond filiform, tubular, continuous, membranaceous, 
branched; fructification groups of roundish spores, forming 
transparent lines."— Greville. 
Striaeia attenuata (Thin).—“ Growing on other Algae. 
Rare. Found all round the coast. This plant is also a 
native of the Mediterranean.”— Harvey. 
10. PUNCTARIA. 
“Frond simple, membranaceous, flat, with a naked 
scutate root; fructification scattered over the whole frond 
in minute distinct spots, composed of roundish prominent 
seeds, intermixed with club-shaped filaments. The name 
from punctum, a dot, from the dot-like fructification.”— 
Greville. 
1. Punctaria i-atifolia (Eroad-leaved).—“On rocks in 
the sea. Annual.” 
2. P. plantaginea (Plantain-like).—Frond olive-brown, 
thin, lanceolate, attenuated at the base, more or less waved, 
entire, dotted.”— Greville. 
This weed, when young, makes very pretty specimens for 
the herbarium, the olivaceous tints are so rich and soft; 
when older it becomes darker, and does not adhere to 
paper. 
3. P. tennissima (Thinnest).—“In the sea parasitic on 
Zostera marina." 
11. ASPEROCOCCUS. 
“Frond unbranched, tubular, cylindiical, continuous, 
membranaceous; root minutely scutate, naked; fructifica¬ 
tion scattered over the whole frond in minute distinct dots. 
Name from two words, rough and seed.”— Harvey. 
1. Asperococcus compressus (Flattened).—Rare, 
of England. 
2. A. Turnerj.— “ On stones and the larger Aljoe, also 
tide pools. Semi-transparent; pale olive.” 
3. A. echinatus (Hedgehog-like).—Darker and smaller 
than the preceding. Common. 
12. LITOSIPHON. 
“Frond unbranched, cylindrical, filiform; fructification 
naked spores scattered over the surface.”. Name signifying 
a slender tube. 
1. LrrosirnoN pusillus (Dwarf). — “In the sea para¬ 
sitical.” 
2. L. Laminarle. 
lactuca." Dull olive-brown. 
Dr. Harvey remarks, that there is great variety amongst 
the plants of this order. Some are simple flat expansions; 
in others the frond is a simple bag, closed at both ends ; 
while others have a fan-shaped outline; some are hollow 
South 
in 
“ Growing on Alaria esculenta and Civ a 
