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Pakistan | Family List | Pakistan V. 204 | Chenopodiaceae

24. Halothamnus Jaubert & Spach, Ill. Pl. Or. 2: 50. t. 136. 1845; G. Kothe-Heinrich in Biblioth. Botanica 143: 1-180. 1993; in Rech. f., Fl. Iran. 172: 255. 1997.

Aellenia Ulbr. in Engler & Prantl., Naturl. Pflanzenfam. ed. 2. 16c: 567. 1934; Iljin in Kom., Fl. URSS 6: 270. 1936.

Annuals or perennials, sub-shrubs or shrubs, glabrous to hispidulous, hairs unicellular. Leaves alternate, sessile or decurrent, entire, flat or semiterete, somewhat succulent, sometimes with multicellular hairs in axils. Flowers in loose simple or paniculate spikes; sessile, bisexual, protandrous. Perianth segments 5, polyphyllous, 3 wider than others. Stamens 5, epipetalous, filaments band-shaped. Disc hypogynous, glabrous, short, fleshy, later membranous. Stigmas 2, inside papillose, tips exserted. Fruiting perianth 5-winged, 3 wider, basally indurated forming a broad tube with 5 distinct cavities (pits). Utricle enclosed; pericarp apically and basally lignified, laterally membranous. Seed horizontal, exalbuminous, embryo spiral.

A genus with c. 21 species distributed from Somalia, Arabia, Middle East, S.W.Asia, Middle-Asia and Caucasus to Dzungaria (China). Represented in Pakistan by 3 taxa.

*G. Kothe-Heinrich, Südring 23, 64846 Groß-Zimmern, Germany.

1 Leaves and bracts of lower flowers flat; flowers present on the main as well as on lateral branches; tube pit furrow-like, linear, ± curved, or very narrowly ovate (Fig.32,A-D); wings in or above the middle of the fruit.   1a subsp. acutifolius
+ Leaves and bracts of lower flowers semiterete; flowers present mainly on lateral branches; tube pit round or ovate; wings below or nearly the middle of the fruit.   (2)
2 (1) Shrub without rancid smell; bracteoles of lower flowers with membranous margins and apex; bracts of upper flowers shorter than bracteoles; disc with small semi-circular interstaminal lobes; stigmas apically truncate; fruit 11-20 mm in diameter.   2a subsp. charifii
+ Shrub with rancid smell; bracteoles of lower flowers without membranous apex; bracts of upper flowers as long as the bracteoles; disc unlobed; stigmas apically tapering; fruit 7-11 mm in diameter.   3 H. iranicus

Lower Taxa


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