Dryandra

Dryandra
	Dryandra sessilis
Systematics
	Eudicotyledons
Order :	Silver tree-like (Proteales)
Family :	Silver tree family (Proteaceae)
Subfamily :	Grevilleoideae
Tribe :	Banksieae
Genre :	Dryandra
Scientific name
	Dryandra
	R.Br.

The Dryandra are a genus of plants within the silver tree family (Proteaceae). Their occurrence of around 95 species is limited to the southwestern part of Western Australia .

description

Illustration of Dryandra longifolia .

Dryandra are evergreen shrubs and trees . The alternate, usually spirally arranged, leathery leaves on the branches are simple or composite. The leaf margins are usually serrated, rarely smooth.

The mostly cephalic inflorescences are composed of 15 to 250 individual flowers. The hermaphrodite, four-fold flowers are radial symmetry to zygomorphic . There is only one circle with four free, cream-colored to yellow bracts . There is only one circle with four free stamens . There is only one upper carpel in each flower. The follicles are woody and contain only two seeds. The winged seeds are carried away by the wind.

Systematics

Dryandra squarrosa

Dryandra nivea subsp. Nivea

Distribution of the genus Dryandra , according to a map in the Western Australian Flora .

The botanical genus name honors the Swedish botanist Jonas Dryander (1748–1810). According to some authors, these species belong to the genus Banksia , the most important publication is AR Mast & K. Thiele: The transfer of Dryandra R.Br. to Banksia Lf (Proteaceae) , In: Australian Systematic Botany , Volume 20, 2007, doi : 10.1071 / SB06016 followed by for example APNI and GRIN.

95 species belong to the genus Dryandra . For historical reasons, here is the division of the genus into three sub-genres and some series according to Alex S. George 1996, this is different today according to Mast & Thiele 2007:

Subgenus Dryandra :
- Floribundae Benth Series .
  :
  - Dryandra sessilis (Knight) Domin : There are four varieties of her:
    - Dryandra sessilis (Knight) Domin var. Sessilis
    - Dryandra sessilis var. Flabellifolia
    - Dryandra sessilis var. Cordata
    - Dryandra sessilis var. Cygnorum

Armatae Benth series .
:
- - Dryandra cuneata R.Br.
  - Dryandra fuscobractea A.S. George
  - Dryandra armata R.Br. : There are two varieties of it:
    - Dryandra armata R.Br. var. armata
    - Dryandra armata var. Ignicida
  - Dryandra prionotes A.S. George
  - Dryandra arborea C.A. Gardner
  - Dryandra hirsuta A.S. George
  - Dryandra pallida A.S. George
  - Dryandra purdieana Diels
  - Dryandra xylothemelia A.S. George
  - Dryandra cirsioides Meisn.
  - Dryandra acanthopoda A.S. George
  - Dryandra squarrosa R.Br. : There are two subspecies of it:
    - Dryandra squarrosa R.Br. subsp. squar pink
    - Dryandra squarrosa subsp. argillacea
  - Dryandra hewardiana
  - Dryandra wonganensis
  - Dryandra trifontinalis
  - Dryandra stricta
  - Dryandra echinata
  - Dryandra polycephala Benth.
  - Dryandra subpinnatifida C.A. Gardner : There are two varieties of it:
    - Dryandra subpinnatifida C.A. Gardner var. Subpinnatifida
    - Dryandra subpinnatifida var. Imberbis
  - Dryandra longifolia R.Br. : There are three subspecies of it:
    - Dryandra longifolia R.Br. subsp. longifolia
    - Dryandra longifolia subsp. calcicola
    - Dryandra longifolia subsp. archeos
  - Dryandra borealis A.S. George : There are two subspecies of it:
    - Dryandra borealis A.S. George subsp. borealis
    - Dryandra borealis subsp. elatior

Series Marginatae (Meisn.) ASGeorge :

- Dryandra pulchella Meisn.

Series Folliculosae A.S. George :

- Dryandra fraseri R.Br. : There are five varieties of it:
  - Dryandra fraseri var. Fraseri
  - Dryandra fraseri var. Crebra
  - Dryandra fraseri var. Effusa
  - Dryandra fraseri var. Ashbyi
  - Dryandra fraseri var. Oxycedra

Acrodontae series (Meisn.) ASGeorge :

- Dryandra sclerophylla
- Dryandra kippistiana : There are two varieties of it:
  - Dryandra kippistiana var. Kippistiana
  - Dryandra kippistiana var. Paenepeccata
- Dryandra carlinoides Meisn.
- Dryandra tridentata

Series Capitellatae A.S. George :

- Dryandra serratuloides : There are two subspecies of it:
  - Dryandra serratuloides subsp. serratuloides
  - Dryandra serratuloides subsp. perissa
- Dryandra meganotia

Series Ilicinae (Meisn.) ASGeorge :

- Dryandra praemorsa Meisn. : There are two varieties of it:
  - Dryandra praemorsa var. Praemorsa
  - Dryandra praemorsa var. Splendens
- Dryandra quercifolia Meisn.
- Dryandra anatona

Dryandra series :

- Dryandra formosa R.Br.
- Dryandra nobilis : There are two subspecies of it:
  - Dryandra nobilis subsp. nobilis
  - Dryandra nobilis subsp. fragrans
- Dryandra stuposa

Series Foliosae A.S. George :

- Dryandra mucronulata : There are two subspecies of it:
  - Dryandra mucronulata subsp. mucronulata
  - Dryandra mucronulata subsp. retrorsa
- Dryandra baxteri
- Dryandra foliosissima

Series Decurrentes (Meisn.) ASGeorge :

- Dryandra comosa

Tenuifoliae ASGeorge series :

- Dryandra tenuifolia : There are two varieties of it:
  - Dryandra tenuifolia var. Tenuifolia
  - Dryandra tenuifolia var. Reptans
- Dryandra obtusa

Series Runcinatae (Meisn.) ASGeorge :

- Dryandra ferruginea : There are seven subspecies of it:
  - Dryandra ferruginea subsp. magna
  - Dryandra ferruginea subsp. tutanningensis
  - Dryandra ferruginea subsp. ferruginea
  - Dryandra ferruginea subsp. pumila
  - Dryandra ferruginea subsp. obliquiloba
  - Dryandra ferruginea subsp. chelomacarpa
  - Dryandra ferruginea subsp. flavescens
- Dryandra corvijuga
- Dryandra epimicta
- Dryandra proteoides

Series Triangulares A.S. George :

- Dryandra drummondii : There are three subspecies of it:
  - Dryandra drummondii subsp. drummondii
  - Dryandra drummondii subsp. hiemalis
  - Dryandra drummondii subsp. macrorufa
- Dryandra octotriginta
- Dryandra catoglypta

Aphragma series (R.Br.) ASGeorge :

- Dryandra pteridifolia : There are three subspecies of it:
  - Dryandra pteridifolia subsp. inretita
  - Dryandra pteridifolia subsp. pteridifolia
  - Dryandra pteridifolia subsp. vernalis
- Dryandra fililoba
- Dryandra shanklandiorum
- Dryandra nervosa
- Dryandra blechnifolia
- Dryandra porrecta
- Dryandra aurantia
- Dryandra calophylla
- Dryandra lepidorhiza

Series Ionthocarpae A.S. George :

- Dryandra ionthocarpa : There are two subspecies of it:
  - Dryandra ionthocarpa subsp. ionthocarpa
  - Dryandra ionthocarpa subsp. chrysophoenix

Series Inusitatae A.S. George :

- Dryandra idiogenes

Series Subulatae A.S. George :

- Dryandra subulata

Gymnocephalae series :

- Dryandra cynaroides
- Dryandra erythrocephala : There are two varieties of it:
  - Dryandra erythrocephala var. Erythrocephala
  - Dryandra erythrocephala var. Inopinata
- Dryandra horrida
- Dryandra vestita
- Dryandra viscida
- Dryandra mimica
- Dryandra speciosa Meisn. : There are two subspecies of it:
  - Dryandra speciosa subsp. speciosa
  - Dryandra speciosa subsp. macrocarpa
- Dryandra shuttleworthiana

Series Plumosae A.S George :

- Dryandra plumosa : There are two subspecies of it:
  - Dryandra plumosa subsp. plumosa
  - Dryandra plumosa subsp. denticulata
- Dryandra pseudoplumosa
- Dryandra montana

Concinnae Benth series .
:
- - Dryandra concinna
  - Dryandra serra
  - Dryandra foliolata

Obvallatae Benth series .
:
- - Dryandra fasciculata
  - Dryandra conferta : There are two varieties of it:
    - Dryandra conferta var. Conferta
    - Dryandra conferta var. Parva
  - Dryandra columnaris
  - Dryandra platycarpa
  - Dryandra seneciifolia
  - Dryandra rufistylis
  - Dryandra insulanemorecincta

Series Pectinatae (Meisn.) ASGeorge :

- Dryandra nana

Acuminatae A.S. George series :

- Dryandra priesii

Niveae Benth series .
:
- - Dryandra arctotidis
  - Dryandra tortifolia
  - Dryandra stenoprion
  - Dryandra cypholoba
  - Dryandra lindleyana : There are five subspecies of it:
    - Dryandra lindleyana subsp. lindleyana
    - Dryandra lindleyana subsp. pollosta
    - Dryandra lindleyana subsp. media
    - Dryandra lindleyana subsp. agricola
    - Dryandra lindleyana subsp. sylvestris
  - Dryandra brownii
  - Dryandra nivea (Labill.) R.Br. : There are two subspecies of it:
    - Dryandra nivea subsp. Nivea
    - Dryandra nivea subsp. uliginosa

Subgenus Hemiclidia (R.Br.) ASGeorge : It contains only two species:

- Dryandra falcata R.Br.
- Dryandra glauca A.S. George

Subgenus Diplophragma (R.Br.) ASGeorge : It contains only one species:

- Dryandra bipinnatifida R.Br.

swell

George Bentham : Dryandra in Flora Australiensis , Volume V / CIV, 1870. - Online in Wikisource.
Description of the genus in the Flora of Australia Online. (engl.)
Description of the genus in the Western Australian flora . (Section description)
Dryandra Background at Australian Native Plants Society (Australia) = ANSPA.

Individual evidence

^ Australian Plant Name Index = APNI.
^ Dryandra in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland.
↑ Alex S. George: New taxa and a new infragenetic classification in Dryandra R.Br. (Proteaceae: Grevilleoideae) , In: Nuytsia , Volume 10, Issue 3, 1996, pp. 313-408.

[APNI-1] Australian Plant Name Index = APNI.

[GRIN-2] Dryandra in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland.

[George1996-3] Alex S. George: New taxa and a new infragenetic classification in Dryandra R.Br. (Proteaceae: Grevilleoideae) , In: Nuytsia , Volume 10, Issue 3, 1996, pp. 313-408.