Gnaphàlium, everlasting. This genus has got all the beautiful Cape species taken out of it, and given to Astélma and Helichrysum. Of Astélma there are above ten species, most of them very splendid, everlasting flowers. A. exímia has brilliant red flowers. A. spiràlis, A. speciosíssima, A. frùticans, and A. imbricàtum, are all very fine; pots must be well drained.
Helychrysums, above forty species, chiefly belonging to the Green-house, all everlasting flowers. H. grandiflòrum, H. arbòreum, H. orientàle, H. fràgrans, H. adoratìssimum, H. frùticans, and H. fúlgidum, are all very esteemed species, mostly soft white foliage. The pots should be well drained, and the plants kept in an airy situation, as they suffer from the least damp. If the flowers are cut off before they fade, they will retain for many years all the splendour of their beauty; but if allowed to decay on the plant, they will soon become musty, and all their colour fade.
Gompholòbiums, a genus of very pretty delicate plants, all papilionaceous; flowers generally yellow with a little red; foliage very variable. G. barbígerum, G. polimórfum, G. latifòlium, G. grandiflòrum, and G. venústum, are fine, the pots must be well drained, and care taken that they are not over watered; they grow freely.
Genístas: a few of these are very pretty free flowering shrubs. G. canariénsis, G. tricuspidáta, G. cuspidòsa, and G. umbellàta, are the finest Green-house species. All of them have yellow leguminose flowers in great abundance; leaves small, lanceolate.
Gnídias, about ten species of pretty Green-house shrubs. G. símplex, G. serícea, G. imbérbis, and G. pinifòlia, flower the most freely; flowers straw colour, tubular, and corymbose. G. símplex is sweet-scented, leaves small; the pots must be well drained, and care taken that they do not get either too wet or too dry, for the roots are very delicate. The plants must be kept near the glass, or they will be drawn weak.
Goodènia, a genus of about twelve species, with cordate, serate, alternate foliage. G. stellígera, and G. suáveolens are sweet-scented; G. ovàta and G. grandiflòra are the best. They are principally small shrubs, with terminale or axillary flowers, and flower during summer.
Gortèria personàta is the only species that belongs to this genus, and is an annual. There are several plants in our collections known as Gortèrias, but which properly are Gazània, of which there are five species. G. rìngens, when the flowers are fully expanded, (which will only be while exposed to the sun, closing at night, and opening again with the influence of the sun's rays,) is a great beauty. The rays of the flowers are bright orange, and the centre dark purple. G. pavónia has handsome foliage; flower similar to G. rìngens, except the centre of the flower being spotted, and is thought to be the finest, but does not flower so freely. G. heterophylla is of the same character, except the foliage, which is variable, the colour orange and vermilion. They are half shrubby dwarf growing plants, and during the months of July, August, and September, are liable to damp off at the surface of the earth, from the action of heat, and too much water. Pots must be well drained, and the plants kept partially in the shade. Their flowers are syngenesious, and about two inches in diameter.
Grevílleas, about thirty species. A few of them very handsome in flower and foliage, among which are G. punícea; G. acanthifòlia, (beautiful foliage); G. concínna, very pretty straw and rose-coloured flowers; G. juniperìna, green and straw-coloured; G. lineàris, white flowers. The flowers of the whole are curious, though not very attractive. Some carry their flowers in racemose spikes, others on flowering branches, which are recurved; the petals are very small and rugged; the stile longer than the appendage. They grow freely, flower and ripen seeds; all evergreen dwarf shrubs.
Hàkeas, about forty species, not generally so interesting or attractive as the last genus; flowers all white; construction similar to Grevíllea, but the foliage more varied. H. gibbòsa, H. nítida, H. salígna, H. suavèolens, sweet-scented, H. conculàta, and H. lambérti, are the best, and afford a curious variety of foliage; flower in June. Drain the pots well.
Hemerocállis, Day Lily. Only H. speciòsa of this genus belongs to the Green-house; the flower is spacious, and of copper colour. A native of Jamaica. It has not found its way into our collections. It is herbaceous, and while growing requires much water. The plant known with us as H. japónica is now Fúnkia álba, (and justly, for the most superficial observer could have distinguished it as not belonging to Hemerocállis.) It requires to be much fostered to flower well, and plenty of water. If properly treated, it is a magnificent flower, and continues flowering from July to September. We doubt not it may prove a hardy herbaceous plant, (the same as F. cærùlea,) if protected during the first winter.