2. Punctaria latifolia.
3. Chordaria flagelliformis.
4. Vaucheria submarina.
5. Hildenbrandtia rubra.
The Cladophoræ are also stated to be very suitable, C. rupestris being a very useful plant for the purpose. It is of a bluish-green, that harmonizes well with the tone of the sea-water, and fills up little chasms in the artificial rocks with very good effect, especially in contrast with the reddish-purple tufts of Polysiphonia arceolata, which do well in an Aquarium, and are a great aid to the foliage of the little marine landscape. The elegant, fan-formed, and brightly-radiated Padina pavonia is likewise mentioned, and should at all events be tried, as the tufts of that graceful marine plant form very singular as well as beautiful objects in the tank.[[2]]
[2]. A list of the plants with which Mr. Gosse furnished his first Aquarium is given in Chapter III.
I would also recommend the trial of all the plants delineated in the five Plates devoted to the sea-weeds in this little book.
In [Plate I.], the first, occupying the upper part, with leaf-like fronds of transparent crimson, is the beautiful and not uncommon sea-weed, Delesseria sanguinea. The delicate pale plant below, to the right, is Punctaria latifolia, thin as tissue-paper, and speckled over its pale-buff surface with bright but minute grains of black. To the left is a branch of Chordaria flagelliformis, the rich olive of which contrasts well with the red kinds of Algæ. In the front, growing on a detached pebble, is the Lichen-like Hildenbrandtia rubra, the rich carmine of which might be made to form an exquisite touch of colour, if tastefully placed in the Aquarium; and to the extreme right is a small tuft of Vaucheria submarina.