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- Reference
- Trans.Linn.Soc.London,Bot. 4:221 (1798)
- Name Status
- Not Current
Scientific Description
Family Rutaceae.
Habit and leaf form. Small trees, or shrubs; evergreen, or deciduous; bearing essential oils. Mesophytic, or xerophytic. Leaves alternate, or opposite; leathery, or ‘herbaceous’; petiolate; non-sheathing; gland-dotted; aromatic; simple. Leaf blades when simple dissected, or entire; when simple/dissected pinnatifid, or much-divided; pinnately veined, or one-veined. Leaves without stipules; without a persistent basal meristem. Leaf anatomy. Hairs present, or absent (then trichomes lepidote); complex hairs present. Complex hairs minutely stellate. Stem anatomy. Nodes unilacunar, or tri-lacunar. Secondary thickening developing from a conventional cambial ring.
Reproductive type, pollination. Fertile flowers hermaphrodite. Unisexual flowers absent. Plants hermaphrodite. Entomophilous.
Inflorescence and flower features. Flowers solitary; axillary; pedicellate; bracteate; bracteolate (the pedicel with 5–12 scattered, sepaloid bracteoles); small to medium-sized; fragrant; regular, or somewhat irregular. The floral asymmetry when noticeable, involving the perianth and involving the androecium (not K). Flowers 5 merous; cyclic. Floral receptacle developing a gynophore (associated with the disk), or with neither androphore nor gynophore. Free hypanthium absent. Hypogynous disk present; intrastaminal; annular. Perianth with distinct calyx and corolla; 10; 2 -whorled; isomerous. Calyx 5; 1 -whorled; polysepalous, or gamosepalous; imbricate; regular; with the median member posterior. Corolla 5; 1 -whorled; polypetalous, or gamopetalous; imbricate; regular, or unequal but not bilabiate; hairy abaxially (stellate to lepidote). Androecium 2, or 3, or 5, or 8, or 10, or 20–60. Androecial members free of the perianth; all equal, or markedly unequal; free of one another; 1 -whorled, or 2 -whorled. Androecium exclusively of fertile stamens, or including staminodes. Staminodes (often representing the antepetalous whorl) (3–)4, or 5(–10). Stamens 2–60; reduced in number relative to the adjacent perianth to polystemonous; pyramidally arranged. Filaments hairy (woolly ciliate); apex swollen and verrucose. Anthers dorsifixed, or basifixed (? more or less); versatile; dehiscing via longitudinal slits; introrse, or latrorse; tetrasporangiate; appendaged, or unappendaged; white- apiculate, or non-apiculate (? blunt). Gynoecium (1–)3 carpelled, or 4–5(–100) carpelled; apocarpous; eu-apocarpous; superior. Carpel apically stigmatic (? styles affixed near apex of inner margin of carpels, ovary without a sterile apex); (when apo- or semicarpous) (1–)2–100 ovuled. Placentation of the free carpels marginal. Stigmas capitate; wet type, or dry type; papillate, or non-papillate; Group II type, or Group IV type. Ovules pendulous to ascending; epitropous; when two or more per cell, collateral, or superposed, or biseriate; arillate, or non-arillate; anatropous, or hemianatropous.
Fruit and seed features. Fruit fleshy, or non-fleshy; an aggregate. The fruiting carpel dehiscent, or indehiscent; baccate (4 cocci). Seeds reniform; endospermic, or non-endospermic. Embryo well differentiated. Cotyledons 2. Embryo chlorophyllous, or achlorophyllous; straight, or curved, or bent. Seedling. Germination phanerocotylar, or cryptocotylar.
Physiology, biochemistry. Aluminium accumulation not found. Photosynthetic pathway: C3.
Geography, cytology, number of species. A genus of 2 species.
Additional characters Petals uninerved, or multinerved.