Skip to main content

Service Notice

The Western Australian Herbarium’s collections management system and census were set to read-only mode on 1 October 2025. Taxonomic updates published since this time are not being reflected in Florabase, herbarium collections, or Western Australia’s taxonomic names census (Nomos). Conservation listings displayed on Florabase may also be out of date. Please refer to DBCA’s Threatened species and communities webpage for the most recent Threatened and Priority Flora List, noting that recent taxonomic updates are similarly not included. Our database migration is moving to a staging phase. We thank you for your patience as we ensure the integrity of our biodiversity data, develop new workflows, and train staff to use the new systems. Please reach out to us if you have any questions or concerns.

The notice period started at 12:00 pm on Wednesday, 1 October 2025 +08:00 and will end at 12:00 pm on Friday, 1 January 2027 +08:00.

Advanced Search

Croninia J.M.Powell

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

Reference
Nuytsia 9(1):125 (1993)
Name Status
Not Current
Image

Scientific Description

Family Epacridaceae.

Habit and leaf form. Small shrubs; evergreen; leptocaul, or pachycaul. Helophytic to xerophytic. Leaves minute to small; alternate; spiral; ‘herbaceous’, or leathery; imbricate, or not imbricate; shortly petiolate; non-sheathing; simple. Leaf blades entire; flat; parallel-veined; cross-venulate, or without cross-venules. Leaves without stipules. Leaf blade margins flat. Stem anatomy. Nodes unilacunar. Secondary thickening developing from a conventional cambial ring.

Reproductive type, pollination. Fertile flowers hermaphrodite. Unisexual flowers absent. Plants hermaphrodite. Entomophilous, or ornithophilous. Pollination mechanism unspecialized.

Inflorescence and flower features. Flowers solitary; axillary; bracteate. Bracts triangular, keeled. Flowers bracteolate. Bracteoles grading upwards in size to the sepals. Flowers small to medium-sized; fragrant, or odourless; regular; 5 merous; cyclic; tetracyclic. Free hypanthium absent. Hypogynous disk present; intrastaminal; annular. Perianth with distinct calyx and corolla; 10; 2 -whorled; isomerous. Calyx 5; 1 -whorled; polysepalous; ciliolate on the margins; imbricate; regular; persistent. Corolla 5; 1 -whorled; gamopetalous. Corolla lobes markedly shorter than the tube. Corolla valvate; tubular (tube cylindrical); regular; hairy adaxially (with ornamented hairs, lobes shortly bearded on the upper surface); white; persistent, or deciduous. Corolla lobes triangular (thick and fleshy). Androecium 5. Androecial members adnate (to the corolla); all equal; free of one another; 1 -whorled. Androecium exclusively of fertile stamens. Stamens 5. Staminal insertion in the throat of the corolla tube. Stamens isomerous with the perianth; oppositisepalous; all alternating with the corolla members. Filaments glabrous; short, terete. Anthers linear; attached dorsally, immediately below the bifurcate apex; becoming inverted during development, their morphological bases ostensibly apical in the mature stamens; non-versatile; dehiscing via longitudinal slits (by a single median slit); finally introrse (inverting during development); bisporangiate; unappendaged. Pollen shed as single grains; without viscin strands. Gynoecium 5 carpelled. The pistil 5 celled. Gynoecium syncarpous; eu-syncarpous; superior. Ovary plurilocular; 5 locular. Gynoecium stylate. Styles 1; from a depression at the top of the ovary; apical; hairy. Stigmas 1; truncate. Placentation apical. Ovules 1 per locule; pendulous; non-arillate; anatropous.

Fruit and seed features. Fruit non-fleshy (mesocarp thin and dry); hairy; indehiscent; a drupe. The drupes with one stone. Endocarp hard and bony. Seeds endospermic. Endosperm oily. Seeds wingless. Embryo well differentiated. Cotyledons 2. Embryo straight. Seedling. Germination phanerocotylar.

Physiology, biochemistry. Aluminium accumulation not found. Photosynthetic pathway: C3.

Geography, cytology, number of species. Native of Australia. Endemic to Australia. Australian states and territories: Western Australia. South-West Botanical Province.

Additional characters Prophylls numerous. Corolla lobes spreading (horizontally).