Tydaea
(named after Tydeus, a son of CEneus, King of Calydon). ORD. Gesneraceae. A small group of stove herbs, natives of tropical America, now included under Isoloma. The species hybridise freely, and many crosses have received distinctive names in continental gardens. For culture of the plant described below, see Gesnera.
T. amabilis (lovely).* fl. dark rose-coloured; corolla large, very villous, the limb of five unequal, rounded lobes, dotted with purple, the oblique tube paler-coloured within, but marked larger dots and blotches; peduncles axillary, solitary, as long as, or the upper ones much longer than, the leaves, erect, purple below. Spring. l. opposite, ovate, bluntly serrate-toothed, somewhat acuminate, dull green above, pale beneath. Stem 1ft. to 2ft. or more high, greenish-purple. New Grenada, 1855. Whole plant hairy. See Fig. 137. (B. M. 4999.)