Goodenia subg. Monochila sect. Tetrathylax G.Don, Gen. hist. 3: 725. 1834

≡ Tetrathylax (G.Don) de Vriese, Natuurk. Verh. Holl. Maatsch. Wetensch. Haarlem ser. 2, 10: 164. 1854 (as ' Tetraphylax ') - Type: T. quadrilocularis (R.Br.) Vriese ≡ Goodenia quadrilocularis R.Br.

= Goodenia sect. Goodenia ser. Racemosae Benth., Fl. Austral. 4: 51, 57 (1868) - Type (designated by Carolin in George (ed.), Fl. Australia 35: 331. 1992): G. decurrens R.Br.

Description.

Subshrubs or herbs. Leaves basal or if cauline usually narrower and smaller. Flowers in thyrse-like panicles, racemes or spikes with bracteose bracts; bracteoles present. Sepals equal. Corolla bilabiate, yellow, lemon or rarely orange, hairs in throat, enations present; scarcely auriculate to auriculate. Ovary 2-locular with 15-65 ovules in two rows in each locule. Fruit a capsule, valves usually + bifid or rarely entire. Seeds 1-1.8 mm long, wing c. 0.1 mm wide and mucilaginous or with a rim.

Number of taxa and distribution.

A section of nine species present in coastal and highland areas including the Blue Mountains in eastern Australia and G. quadrilocularis from near Cape le Grand in south-west Western Australia.

Included species.

G. bellidifolia Sm., G. bellidifolia subsp. argentea Carolin, G. bellidifolia Sm. subsp. bellidifolia, G. decurrens R.Br., G. dimorpha Maiden & Betche, G. dimorpha var. angustifolia Maiden & Betche, G. dimorpha Maiden & Betche var. dimorpha, G. glomerata Maiden & Betche, G. lineata J.H.Willis, G. quadrilocularis R.Br., G. racemosa F.Muell., G. racemosa var. latifolia Carolin, G. racemosa F.Muell. var. racemosa, G. rostrivalvis Domin, G. stelligera R.Br.

Note.

Don (1834) recognised the section Tetrathylax (meaning four - pouch) to include G. quadrilocularis . The name was formed providing the Greek and Latin translations for tetras (four-fold) and thylax (a cell) in recognition of the 4-celled condition of the capsule. de Vriese treated the section at generic rank with the incorrect spelling ' Tetraphylax ', which was followed by subsequent authors until corrected by Carolin (1992e).