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Synonyms: Miyoshiaceae Nakai; Protoliriaceae Makino, nom. inval.
Common name: Petrosavia Family.
Number of genera 2. Number of species 2 (Petrosavia sinii (K. Krause) Gagnep., Protolirion sp).
Angiosperm. Liliopsida.
Disseminule a dehisced fruit, or a seed.
Fruits
Pistil(s) compound; 1; 1-pistillate; with carpels nearly separate to base. Fruit pericarpium; schizocarp; follicarium; without persistent central column; with styles(s); at apex; not within accessory organ(s); 3-carpellate; with carpels separate; with carpels radiating at maturity (more or less); without sterile carpels; not sulcate; apex not beaked; dehiscent. Dehiscent unit seed(s). Dehiscent passively (assumed); and shedding seeds; without replum. Epicarp durable; glabrous (without hairs); without armature; without wing(s); without apical respiratory hole. Mesocarp absent. Endocarp present; not separating from exocarp; thin; not splitting into 1-seeded pyrenes; smooth; without wing; without operculum; without secretory cavities; without mechanism for seedling escape; without grooves; without longitudinal ridges. Funiculus short; short without seed bearing hooks (retinacula); not persisting in fruit after seed shed.
Seeds
Aril absent. Seed minute (assumed); less than 1 mm long; oblong; not bowl shaped; not nutlike; without winglike beak; without caudate appendage(s); at maturity with food reserves; with endosperm; without canavanine. Sarcotesta absent. Testa present; without markedly different marginal tissue; without fleshy or leathery layer over hard layer; surface unsmooth; surface with merged raised features; surface reticulate; without crease or line separating cotyledons from hypocotyl-radicle; without notch along margin where cotyledons from hypocotyl-radicle tip approach each other; without glands; without bristles; glabrous; without wings; without collar; without operculum; colored; monochrome; not becoming mucilaginous when wetted; surrounding food reserve (assumed). Hilum punctate (assumed). Raphe inconspicuous (assumed). Endosperm copious (assumed); without fatty acid containing cyclopropene; without apical lobes; without chlorophyll; without isodiametric faceted surface; without odor.
Embryo well developed; 1 per seed.
Distribution
Old World. Asia Major and southeastern Asia (to southern China & Japan to Malay Peninsula & Borneo).
Weed information
No USA noxious weeds.
Listed seeds
No ASOA or ISTA listed seeds.
Accepted genera
Petrosavia Becc. -- Protolirion Ridl.
References specific to this family
Cronquist page 1074.
General references
Cronquist, A. 1981. An integrated system of classification of flowering plants, 1,262 p. Columbia University Press, New York, Roosmalen, M.G.M. van. 1985. Fruits of the Guianan flora, 483 pp. Institute of Systematic Botany, Wageningen Agricultural University. Drukkerij Veenman B.V., Wageningen, Spjut, R.W. 1994. A systematic treatment of fruit types. Mem. New York Bot. Gard. 70:1–182.
Illustrations
Poor fruit and acceptable seed illustrations. Disseminule illustration(s): fruit, or seed, or embryo. Fruit illustration(s): Cronquist. Seed illustration(s): Karen. Embryo illustration(s): Karen. Karen's plate number and taxon (taxa): 334: Petrosavia sinii (K. Krause) Gagnep. (A-B).
• Fruit. 1 of 3. Petrosavia sinii (Krause) Gagn.: fruit with calyx. • Seed. 2 of 3. Petrosavia sinii (Krause) Gagn.: seeds. • Embryo. 3 of 3. Petrosavia sinii (Krause) Gagn.: embryo.
We advise against extracting comparative information from the descriptions. This is much more easily achieved using the DELTA data files or the interactive key, which allows access to the character list, illustrations, full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting or lacking specified attributes, and distributions of character states within any set of taxa. See also Guidelines for using data taken from Web publications.
Cite this publication as: ‘J.H. Kirkbride, Jr., C.R. Gunn, and M.J. Dallwitz. 2000 onwards. Family guide for fruits and seeds: descriptions, illustrations, identification, and information retrieval. Version: 12th April 2021. delta-intkey.com’.
