Page:An introduction to physiological and systematical botany (1st edition).djvu/468

 flower and succulent fruit, springing immediately from the root, without stem or leaves. On this plant Linnæus published a dissertation in 1775. Tamarindus has lately beer removed hither from the third Class, perhaps justly.

2. Pentandria. Erodium, Engl. Bot. t. 902, separated, with great propriety, from Geranium by L'Heritier; Hermannia, a pretty Cape genus, ''Curt. Mag. t. 307; and a few other plants, more or less akin to the Mallow tribe, compose this Order; to which also strictly belong some species of Linum, Geranium'', &c. Passiflora, removed from Gynandria, belongs most unquestionably to Pentandria Trigynia, and by no means to this Class.

3. Heptandria consists only of Pelargonium of L'Heritier, an excellent genus, comprising most of the Cape Geraniums, and marked by its irregular flower, 7 stamens, and tubular nectary.

4. Octandria contains Ailonia, ''Curt. Mag. t.'' 173, named in honour of the excellent and universally respected author of the