Common name. Cryptandras. Family Rhamnaceae.
The generic circumscription at present includes a number of species which will be segregated into new genera. The small groups are as follows (Rye pers. comm.): (a) C. wichurae + 1 south-eastern Queensland species, (b) C. intratropica + 2 others (see Rye 1997), and (c) C. mutila + C. pungens + 1 other. C. dielsii ms is likely to be segregated into a monotypic genus.
Habit and leaf form. Shrubs. ‘Normal’ plants. Leaves well developed. Plants with roots; non-succulent; spiny, or unarmed; autotrophic. To 1 m high (‘low shrub’). Self supporting. Not heterophyllous. Leaves small; not fasciculate, or fasciculate (C. nutans, C. pungens, C. glabriflora); alternate; with blades; petiolate, or petiolate, subsessile, and sessile (C. glabriflora, C. nutans); with ‘normal’ orientation; simple; not peltate. Leaf blades entire; flat, or solid (C. scoparia, C. glabriflora); semi-terete; linear, or ovate, or obovate, or oblong, or elliptic; pinnately veined. Mature leaf blades adaxially glabrous, or scabrous, or pubescent; abaxially glabrous, or scabrous, or pubescent (usually hairier than the adaxial surface). Leaves with stipules. Stipules scaly, or spiny; persistent. Leaf blade margins entire; revolute, or flat (or convex). Leaf anatomy. Hairs present, or absent.
Reproductive type, pollination. Fertile flowers hermaphrodite. Unisexual flowers absent. Plants hermaphrodite.
Inflorescence and flower features. Flowers aggregated in ‘inflorescences’, or solitary; in spikes, or in heads (or clusters). Inflorescences simple; axillary. Flowers pedicellate (includes most of the soon-to-be segregated taxa referred to earlier), or subsessile; bracteate; minute; regular; 5 merous; cyclic; tetracyclic. Free hypanthium present. Perianth with distinct calyx and corolla, or sepaline (C. apetala); 10, or 5; 2 -whorled, or 1 -whorled; isomerous. Calyx present; 5; 1 -whorled; gamosepalous; lobed; glabrous, or hairy; valvate; regular. Calyx lobes triangular. Epicalyx absent. Corolla present, or absent (C. apetala); 5, or 0; 1 -whorled, or 0 -whorled; alternating with the calyx; polypetalous; regular; hairy abaxially, or glabrous abaxially; hairy adaxially, or glabrous adaxially; white, or red. Petals triangular (when not clawed); clawed (when not triangular). Androecium present. Fertile stamens present. Androecial members definite in number. Androecium 5. Androecial members adnate (to the base of the floral tube); free of the gynoecium; free of one another; 1 -whorled. Stamens 5; all more or less similar in shape; isomerous with the perianth; alternisepalous; filantherous. Anthers separate from one another; dehiscing via longitudinal slits; bilocular; tetrasporangiate. Fertile gynoecium present. Gynoecium 3 carpelled, or 2 carpelled (C. intratropica), or 1 carpelled (C. micrantha Rye ms). The pistil 1 celled. Carpels reduced in number relative to the perianth. Gynoecium syncarpous, or monomerous; synstylovarious; inferior. Ovary plurilocular; 3 locular, or 2 locular, or 1 locular. Gynoecium stylate. Styles 1; apical. Stigmas 1–3 - lobed. Ovules 1 per locule (in WA); ascending; anatropous.
Fruit and seed features. Fruit aerial; ca 3 mm long; hairy, or not hairy; a schizocarp. Dispersal unit the seed. Seeds 1 per locule.
Geography, cytology, number of species. Native of Australia. Endemic to Australia. Australian states and territories: Western Australia, South Australia, Queensland, New South Wales, Victoria, Australian Capital Territory, and Tasmania. South-West Botanical Province. A genus of ca 40 species; ca 23 species in Western Australia; ca 21 endemic to Western Australia.
Etymology. From the Greek for "hidden" and "man"; the stamens are hidden by the hooded petals.
FloraBase is produced by the staff of the Western Australian Herbarium, Biodiversity and Conservation Science, Department of Biodiversity, Conservation and Attractions. Publication or other use of content on this site is unauthorised unless that use conforms with the copyright statement.
Western Australian Herbarium (1998–). FloraBase—the Western Australian Flora. Department of Biodiversity, Conservation and Attractions. https://florabase.dpaw.wa.gov.au/