Petermanniaceae

Taxonomy

Family name: Petermanniaceae Hutch.

Synonym(s): [none]

Common name(s): petermannia family

*Number of genera/species: 1/1

List of genera records in GRIN-Global

Disseminule

fruit

Description

Fruit indehiscentindehiscent:
not opening on its own, as in a fruit
, berryberry:
an indehiscent, fleshy fruit with one or a few to many seeds. The flesh may be homogenous throughout. Or, if the outer part is hard, firm, or leathery, referred to as an hesperidium. Septa are present in some, and the seeds may be arillate or with a fleshy testa.
, 7–18 mm long, globoseglobose:
3D shape—more or less spherical
, tereteterete:
approximately circular in cross section; width and thickness approximately equal
in transectiontransection:
a cross section; representing a plane made by cutting across an organ at a right angle to its length
, many-seeded. Pericarppericarp:
fruit wall or fruit coat
red, fleshyfleshy:
texture—fairly firm and dense, juicy or at least moist, and easily cut
, thickthick:
having or being of relatively great depth
.

Seed globoseglobose:
3D shape—more or less spherical
, somewhat angularangular:
2D shape—having sides that meet at acute or obtuse angles  
. Seed coat brown, thickthick:
having or being of relatively great depth
, hard, wrinkledwrinkled:
surface relief—shallow, irregular folds and furrows covering the surface; appearing overall though crumpled and then spread out
.

Embryo linearlinear:
(shape) long, narrow, and uniform in width; (of embryo) embryo is straight and much longer than wide
, curvedcurved:
(of embryo) linear embryo is curved into an arch or horseshoe with the ends far apart
. Endospermendosperm:
nutritive starch- and oil-containing tissue present in many seeds
copious.

Identification features

Fruit
Type berryberry:
an indehiscent, fleshy fruit with one or a few to many seeds. The flesh may be homogenous throughout. Or, if the outer part is hard, firm, or leathery, referred to as an hesperidium. Septa are present in some, and the seeds may be arillate or with a fleshy testa.
Size range 7–18 mm long
Shape(s) globoseglobose:
3D shape—more or less spherical
Texture fleshyfleshy:
texture—fairly firm and dense, juicy or at least moist, and easily cut
Color(s) red
Unique features Red, fleshyfleshy:
texture—fairly firm and dense, juicy or at least moist, and easily cut
, thickthick:
having or being of relatively great depth
walled, globoseglobose:
3D shape—more or less spherical
berriesberries:
an indehiscent, fleshy fruit with one or a few to many seeds. The flesh may be homogenous throughout. Or, if the outer part is hard, firm, or leathery, referred to as an hesperidium. Septa are present in some, and the seeds may be arillate or with a fleshy testa.
.
Seed
Shape(s) globose, polygonal
Surface relief wrinkledwrinkled:
surface relief—shallow, irregular folds and furrows covering the surface; appearing overall though crumpled and then spread out
Color(s) brown
Unique features Brown seeds with thickthick:
having or being of relatively great depth
, wrinkledwrinkled:
surface relief—shallow, irregular folds and furrows covering the surface; appearing overall though crumpled and then spread out
seed coats.
Other
Embryo linear, curved
Nutritive tissuenutritive tissue:
tissue within the seeds that nourishes the developing embryo; such as endosperm, perisperm, or chalazosperm in angiosperms; megagametophyte in gymnosperms
endosperm endosperm:
nutritive starch- and oil-containing tissue present in many seeds
copious

Distribution

Eastern Australia.

Distribution map courtesy of Angiosperm Phylogeny Website.

References

Baskin and Baskin 2021Baskin and Baskin 2021:
Baskin C and Baskin J. 2021. Relationship of the lateral embryo (in grasses) to other monocot embryos: A status up-grade. Seed Science Research 31 (3): 199-210. doi:10.1017/S0960258521000209
; Dahlgren et al. 1985Dahlgren et al. 1985:
Dahlgren RMT, Clifford HT, and Yeo PF. 1985. The families of the monocotyledons: structure, evolution, and taxonomy. Springer-Verlag, Berlin. 520 pp.
; Flora of Australia 2021+Flora of Australia 2021+:
Flora of Australia. Australian Biological Resources Study, Canberra. Accessed January-May 2021. URL: http://www.ausflora.org.au
; Kirkbride et al. 2006Kirkbride et al. 2006:
Kirkbride JH, Jr, Gunn CR, and Dallwitz MJ. 2006. Family guide for fruits and seeds, vers. 1.0. Accessed September 2020ndash;January 2022. URL: https://nt.ars-grin.gov/seedsfruits/keys/frsdfam/index.cfm .
; Kubitzki et al. 1990+Kubitzki et al. 1990+:
Kubitzki K et al., eds. 1990+. The families and genera of vascular plants. 7+ vols. Berlin etc.
; Stevenson and Loconte 1995Stevenson and Loconte 1995:
Stevenson DW and Loconte H. 1995. A cladistic analysis of monocot families. In: Rudall PJ, Cribb PJ, Cutler DF, and Humphries CJ, eds. Monocotyledons: Systematics and Evolution. Royal Botanic Gardens, Kew.

*The number of genera and species is based on Christenhusz and Byng 2016Christenhusz and Byng 2016:
Christenhusz MJM and Byng JW. 2016. The number of known plant species in the world and its annual increase. Phytotaxa 261 (3): 201ndash;217. https://doi.org/10.11646/phytotaxa.261.3.1
, which may differ from the number of genera in GRIN-Global.

  Inflorescence :  Petermannia cirrosa ; Photo by Lara Solyma, gbif.org

Inflorescence: Petermannia cirrosa; Photo by Lara Solyma, gbif.org

  Fruit:   Petermannia cirrosa;  Illustration by M. Smith, Hooker's Icones plantarum (1882), courtesy of L. Watson and M.J. Dallwitz, 1992 onwards

Fruit: Petermannia cirrosa; Illustration by M. Smith, Hooker's Icones plantarum (1882), courtesy of L. Watson and M.J. Dallwitz, 1992 onwards