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Distichostemon F.Muell.

This name is not current. Find out more information on related names.

Reference
Hooker's J.Bot.Kew Gard.Misc. 197, 306 (1857)
Name Status
Not Current

Scientific Description

Family Sapindaceae.

Habit and leaf form. Shrubs; laticiferous, or non-laticiferous and without coloured juice. Stem internodes solid. Mesophytic. Leaves alternate (clustered); spiral; petiolate; non-sheathing; gland-dotted, or not gland-dotted; simple. Leaf blades entire; narrowly elliptic to oblong, or obovate; pinnately veined (venation prominent); cross-venulate. Leaves without stipules. Leaf blade margins entire, or crenate (crenulate), or serrate (and serrulate). Leaf anatomy. Hairs present (usually densely). Extra-floral nectaries absent. Stem anatomy. Secondary thickening developing from a conventional cambial ring, or anomalous.

Reproductive type, pollination. Fertile flowers hermaphrodite, or functionally male and functionally female, or functionally male, or functionally female. Unisexual flowers present, or absent. Plants hermaphrodite (K), or monoecious (AK), or dioecious (AK). Female flowers with staminodes (small). Male flowers with pistillodes.

Inflorescence and flower features. Flowers solitary (female flowers), or aggregated in ‘inflorescences’; in racemes, or in panicles. The terminal inflorescence unit cymose. Inflorescences terminal, or axillary. Flowers pedicellate; bracteate (slender); bracteolate, or ebracteolate; small; regular; cyclic. Floral receptacle developing an androphore to developing a gynophore. Free hypanthium absent. Hypogynous disk present; extrastaminal; annular. Perianth sepaline; 5–10; 1 -whorled. Calyx present; 5–10; 1 -whorled; polysepalous; imbricate, or valvate; unequal but not bilabiate, or regular; when K5 with the median member posterior. Corolla absent. Fertile stamens present, or absent (female flowers). Androecial members indefinite in number. Androecium 8–74. Androecial members free of the perianth; free of one another; 2–5 -whorled. Androecium of male-fertile flowers exclusively of fertile stamens. Stamens 8–74 (usually above 20 and usually in 2 to many irregular rows); all more or less similar in shape; polystemonous; all round the ovary, inside the disc; filantherous. Anthers dorsifixed, or basifixed; more or less versatile; dehiscing via longitudinal slits; introrse; tetrasporangiate; appendaged, or unappendaged. The anther appendages apical (by connective extension). Fertile gynoecium present, or absent (male flowers). Gynoecium 3–6(–8) carpelled. The pistil 3–8 celled. Carpels reduced in number relative to the perianth, or isomerous with the perianth. Gynoecium syncarpous; synstylovarious to eu-syncarpous; superior. Ovary plurilocular; 3–8 locular. Gynoecium stylate. Styles 1; free, or partially joined; attenuate from the ovary, or from a depression at the top of the ovary; apical. Stigmas 1. Placentation axile to basal. Ovules 2 per locule; funicled, or sessile; pendulous, or horizontal, or ascending; non-arillate; hemianatropous, or anatropous, or campylotropous, or amphitropous.

Fruit and seed features. Fruit non-fleshy; dehiscent; a capsule. Capsules loculicidal. Fruit 3–4 celled; 6–16 seeded. Seeds non-endospermic. Cotyledons 2. Embryo curved, or bent, or coiled.

Etymology. From the Greek for "in two rows or lines" and "thread, stamen".