Rhododendron subsect. Brachycalyx

Group of shrubs

Rhododendron subsect. Brachycalyx

Rhododendron farrerae
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Ericales
Family:	Ericaceae
Genus:	Rhododendron
Subgenus:	Rhododendron subg. Azaleastrum
Section:	Rhododendron sect. Tsutsusi
Subsection:	Rhododendron subsect. Brachycalyx Sweet
Type species
Rhododendron farrerae Sweet
Species
See text

Rhododendron subsection Brachycalyx is a subsection of the genus Rhododendron, in section Tsutsusi, subgenus Azaleastrum, consisting of fifteen species of azaleas from Asia.

Description

Leaves deciduous, pseudoverticillate, rhombic, crowded at the shoot apex and monomorphic, hairs usually confined to axils.

Taxonomy

The section Brachcalyx was first proposed by JC Tate based on the Chinese Rhododendron farrerae, and described by Robert Sweet in 1831, in The British Flower Garden.

Species;

Image	Name	Distribution
	Rhododendron amagianum (Makino) Makino ex H.Hara 1948	Japan (C. Honshu)
	Rhododendron dilatatum Miq. 1863	Japan
	Rhododendron farrerae Sweet 1831	S. China.
	Rhododendron hidakanum H.Hara 1974	Japan
	Rhododendron kiyosumense (Makino) Makino 1931	Japan (Honshu)
	Rhododendron lagopus Nakai 1926	Japan (Honshu, Shikoku)
	Rhododendron mariesii Hemsl. & E.H.Wilson 1907	China, Taiwan
	Rhododendron mayebarae Nakai & H.Hara 1935	Japan (Kyushu)
	Rhododendron nudipes Nakai 1926	Japan (Kyushu)
	Rhododendron reticulatum D.Don ex G.Don 1834	Central & S. Japan
	Rhododendron sanctum Nakai 1932	Japan (C. Honshu)
	Rhododendron tashiroi Maxim. 1886	Japan, Nansei-shoto, Taiwan
	Rhododendron viscistylum Nakai 1935	Japan (S. Kyushu)
	Rhododendron wadanum Makino 1917	Japan (C. Honshu)
	Rhododendron weyrichii Maxim. 1871	Japan, Korea

References

^ Sweet R. The British Flower Garden. Ser. 2, 1: 95 Ridgway, London (1831)
James Charles Tate, Nurseryman at Sloane Square, founder of the Nursery and Botanic Garden and importer of Rhododendrons. British History Online: Farm Gardening and Market Gardening
Xiao-Feng, Jin; Bing-Yang, Ding; Yue-Jiao, Zhang; De-Yuan, Hong (2010). "A Taxonomic Revision Of Rhododendron subg. Tsutsusi sect. Brachycalyx (Ericaceae)". Annals of the Missouri Botanical Garden. 97 (2): 163–190. doi:10.3417/2007139. S2CID 86507576.
"Genus Rhododendron Taxonomic Tree". American Rhododendron Society. Retrieved 18 June 2014.
A. Kron and E. A. Powell. MOLECULAR SYSTEMATICS OF RHODODENDRON SUBGENUS TSUTSUSI (RHODOREAE, ERICOIDEAE, ERICACEAE) Edinburgh Journal of Botany Volume 66 Issue 1 March 2009, pp 81-95

Bibliography

Loretta Goetsch, Andrew Eckert and Benjamin Hall. Classification of genus Rhododendron. 2005 Annual ARS Convention
Chamberlain, DF; Hyam R; Argent G; Fairweather G; Walter KS (1996). The genus Rhododendron: its classification and synonymy. Royal Botanic gardens Edinburgh. ISBN 1-872291-66-X. Archived from the original on July 14, 2014. Retrieved July 3, 2014.
Goetsch, Loretta A.; Eckert, Andrew J.; Hall, Benjamin D. (July–September 2005). "The molecular systematics of Rhododendron (Ericaceae): a phylogeny based upon RPB2 gene sequences". Systematic Botany. 30 (3): 616–626. doi:10.1600/0363644054782170. S2CID 51949019.
Pojarkova AI, in Schischkin & Bobrov, Flora URSS. 18: 55. 1952.
Powell, Kron; Ann, E.; Kathleen, A. "Molecular systematics of Rhododendron subgenus Tsutsusi (Rhodoreae, Ericoideae, Ericaceae)". Botany. 2004: 147.
Chamberlain, DF (1990). "A revision of Rhododendron. IV Subgenus Tsutsusi". Edinburgh Journal of Botany. 47 (2): 89–200. doi:10.1017/S096042860000319X.
Craven, L.A.; Goetsch, L.A.; Hall, B.D.; Brown, G.K. (2008). "Classification of the Vireya group of Rhododendron (Ericaceae)" (PDF). Blumea - Biodiversity, Evolution and Biogeography of Plants. 53 (2): 435–442. doi:10.3767/000651908X608070.
Yue-Jiao, ZHANG; Xiao-Feng, JIN; Bing-Yang, DING; Jing-Ping (2009). "Rhododendron subgen. Tsutsusi and its systematic implications". Journal of Systematics and Evolution. 47 (2): 123–138. doi:10.1111/j.1759-6831.2009.00011.x. S2CID 86594487.
Xiao-Feng, Jin; Bing-Yang, Ding; Yue-Jiao, Zhang; De-Yuan, Hong (2010). "A Taxonomic Revision Of Rhododendron subg. Tsutsusi sect. Brachycalyx (Ericaceae)". Annals of the Missouri Botanical Garden. 97 (2): 163–190. doi:10.3417/2007139. S2CID 86507576.

External links

Flora of China
Flora Republica Popularis Sinicae
Tropicos, see also Section Tsutsusi
"Genus Rhododendron Taxonomic Tree". American Rhododendron Society. Retrieved 18 June 2014.

Subgenera, sections and species of genus Rhododendron, according to morphological (Chamberlain) and phylogenetic (Goetsch, Craven) schemes

Chamberlain (1996)

Rhododendron	Pogonathum Rhododendron Vireya
Hymenanthes	Ponticum
Pentanthera	Pentanthera Rhodora Sciadorhodion Viscidula
Tsutsusi	Brachycalyx Tsutsusi
Azaleastrum	Azaleastrum Choniastrum
Candidastrum	R. albiflorum
Mumeazalea	R. semibarbatum
Therorhodion	R. camtschaticum R. redowskianun

Goetsch (2005)
Craven (2008)

Rhododendron	Discovireya Pogonathum Pseudovireya Rhododendron Vireya
Choniastrum	11 species
Hymenanthes	Ponticum Pentanthera
Azaleastrum	Azaleastrum Sciadorhodion Tsutsusi
Therorhodion	R. camtschaticum R. redowskianun

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