Geleznowia Turcz., Bull. Soc. Imp. Naturalistes

Anderson, Benjamin M., Binks, Rachel M., Byrne, Margaret, Crawford, Andrew D. & Shepherd, Kelly A., 2023, Using RADseq to resolve species boundaries in a morphologically complex group of yellow-flowered shrubs (Geleznowia, Rutaceae), Australian Systematic Botany 36 (4), pp. 277-311 : 293

Geleznowia Turcz., Bull. Soc. Imp. Naturalistes

Moscou 22(3): 12–13 (1849)

Type: G. verrucosa Turcz.

Erect subshrubs to shrubs 0.15–2 m high, branchlets terete, glandular–verrucose, glabrous or with an indumentum of simple hairs. Leaves sessile or with a short petiole, overlapping and crowded towards terminal branches, coriaceous, elliptic to obovate, glandular–verrucose adaxial surface, with or without short, simple hairs. Flowers 1–17 in terminal heads. Bracts 0–14 petaloid, yellow, surrounding flowers. Sepals 5, free, 3.5–14 mm long, imbricate and resembling bracts. Petals 5, yellow, elliptic, thicker than sepals, 4–8.8 mm long. Stamens 10, free, 2.5–5.5 mm long, glabrous. Carpels 5, free, thickened at the apex, glandular–verrucose, with two ovules per carpel; style glabrous, with a narrow to club-shaped stigma. Fruit obovoid with a single seed per locule. Seeds dark brown to black 3.6–5 mm long, with a pale aril.

Distribution

A genus of seven species endemic to Western Australia ( Fig. 8 ).

Etymology

Named for Nikolai Ivanovich Zheleznov (1816–1877), an agronomist at Moscow University ( Turczaninow 1849).

Figures

Fig. 8. Distributions of all seven Geleznowia species in Western Australia. The base map is sourced from GADM (ver. 3.6, see https://gadm.org), with grey borders showing IBRA regions and subregions (Department of Agriculture, Water and the Environment 2020).