Deutzia

Deutzia
Deutzia crenata
Systematics
Eudicotyledons Nuclear eudicotyledons Asterids Order : Dogwood-like (Cornales) Family : Hydrangea family (Hydrangeaceae) Genre : Deutzia
Scientific name
Deutzia
Thunb.

Fruits of Deutzia crenata

The Deutzia ( Deutzia ) are a genus of plants from the hydrangea family (Hydrangeaceae). Some species of the genus, which is closely related to the pipe bushes ( Philadelphus ), are popular ornamental plants .

description

The Deutzia are deciduous, mostly upright shrubs with stem-like branches. The branches are usually hollow or have a loose, light to brown pulp . The bark is thin and finely fissured. The buds are 3 to 7 millimeters long, egg-shaped to elongated egg-shaped, sometimes square and all about the same size. The bud scales are pointed. The leaf scars are V-shaped and show traces of three vascular bundles.

The leaves are arranged opposite one another. They are usually short-stalked, ovate to lanceolate with notched or serrated leaf margin and teeth directed towards the leaf tip. Both sides are pressed with star hair . Stipules are missing.

The flowers are 1 to 2.5 centimeters in diameter. There are few to about 25 arranged in panicles, grapes, cymes or cymes at the end of short, lateral and leafy shoots. The calyx is bell-shaped and five-lobed. There are no sterile flowers. The five petals , arranged like roof tiles or flaps, are spatula to egg-shaped and white to pink. The 10 to 15 stamens are shorter than the petals. The stamens are awl-shaped to linear and forked at the extreme end. The stylus are not overgrown. The under constant ovary is three to fünffächrig, the ovules are arranged transversely. The fruit is a capsule . The numerous, 0.5 to 3 millimeters long seeds are winged.

The chromosome numbers are n = 13, 26, 39, 52 and 65.

distribution

The distribution area of ​​the genus is disjoint and extends from Mexico to Asia (including Korea, Japan, Taiwan, Philippines, China) to the Himalayas . China is the center of diversity .

Systematics

Deutzia gracilis ( Deutzia gracilis ), variety Chardonnay Pearls

Petite Deutzia ( Deutzia gracilis )

Deutzia hookeriana

Long-leaved Deutzia ( Deutzia longifolia )

Ningpo Deutzia ( Deutzia ningpoensis )

Small-flowered Deutzia ( Deutzia parviflora )

Deutzia pulchra

Rough Deutzia ( Deutzia scabra )

The genus was first described by Carl Peter Thunberg in 1781 . The generic name is reminiscent of Johann von der Deutz (1743–1788), a Dutch councilor and sponsor of CP Thunberg.

Overall, the genus consists of around 60 species, which are divided into three sections ( Neodeutzia, Mesodeutzia and Deutzia ) as well as six subsections and 16 series. The Plantlist lists the following species of the genus:

• Deutzia albida Batalin : It occurs in southern Gansu and maybe also in Shaanxi.
• Deutzia aspera Rehder : It occurs in Xizang and Yunnan.
• Deutzia baroniana Diels : It occurs in Hebei, Henan, Jiangsu, Liaoning, Shaanxi, Shandong and Shanxi.
• Deutzia bhutanensis Zaik. : It was first described from Bhutan.
• Deutzia bomiensis S.M. Hwang : It occurs in southern Xizang.
• Deutzia breviloba S.M. Hwang : It occurs in Sichuan at altitudes between 1200 and 3100 meters.
• Deutzia bungoensis Hatus. : It was first described from Kyushu.
• Deutzia calycosa Rehder : It occurs in three varieties in southwest Sichuan and in Yunnan at altitudes between 1400 and 3000 meters.
• Deutzia cinerascens Rehder : It occurs in western Guizhou.
• Deutzia compacta Craib : It occurs in Sichuan and Yunnan at altitudes between 2000 and 4200 meters.
• Deutzia coriacea Rehder : It occurs in the eastern Sichuan.
• Deutzia corymbosa R.Br. ex G.Don : It occurs in India, Nepal, Bhutan and northern Myanmar.
• Deutzia crassidentata S.M. Hwang : It occurs in Sichuan at altitudes between 2000 and 2300 meters.
• Deutzia crassifolia Rehder : It occurs in Xizang and Sichuan at altitudes between 1700 and 2400 meters.
• Deutzia crenata Siebold & Zucc. : It is originally found in Japan.
• Deutzia cymuligera S.M.Hwang : It occurs in the eastern Sichuan.
• Different colored Deutzia ( Deutzia discolor Hemsl. ): It occurs in Gansu, Henan, Hubei, Shaanxi and Sichuan.
• Deutzia esquirolii (H.Lév.) Rehder : It occurs in Guizhou.
• Deutzia faberi Rehder : It occurs in Zhejiang.
• Deutzia floribunda Nakai
• Deutzia glabrata Kom .: It occurs in two varieties in China, Korea and Russia.
• Deutzia glauca W.C.Cheng : It occurs in two varieties in Anhui, Henan, Hubei, Jiangxi, Zhejiang and maybe also in Fujian.
• Deutzia glaucophylla S.M. Hwang : It occurs in Xizang and Sichuan at altitudes between 200 and 2500 meters.
• Deutzia glomeruliflora Franch. : It occurs in Sichuan and Yunnan at altitudes between 200 and 3600 meters.
• Petite Deutzia ( Deutzia gracilis Siebold & Zucc. ): It is native to Japan.
• Deutzia grandiflora Bunge : It occurs in China.
• Deutzia hatusimae H.Ohba, LMNiu & Minamit.
• Deutzia henryi Rehder
• Deutzia heterophylla S.M. Hwang : It occurs in southwest Sichuan.
• Deutzia hookeriana (CKSchneid.) Airy Shaw : It occurs in Bhutan, Sikkim, in China and maybe also in Myanmar.
• Deutzia hypoglauca Rehder : It occurs in two varieties in Gansu, Hubei, Shaanxi and Sichuan.
• Long-leaved Deutzia ( Deutzia longifolia Franch. ): It occurs in two varieties in Gansu, Guizhou, Sichuan and Yunnan at altitudes between 1800 and 3200 meters.
• Deutzia macrantha Hook.f. & Thomson
• Deutzia maximowicziana Makino : It occurs in western Honshu and Shikoku.
• Deutzia mexicana Hemsl.
• Deutzia mollis Duthie : It occurs in western Hubei.
• Deutzia monbeigii W.W.Sm. : It occurs in Xizan, Sichuan and Yunnan at altitudes between 2000 and 3000 meters.
• Deutzia muliensis S.M. Hwang : It occurs in Sichuan.
• Deutzia multiradiata W.T.Wang : It occurs in southeast Sichuan.
• Deutzia nanchuanensis W.T.Wang : It occurs in southeastern Sichuan and in northeastern Yunnan.
• Deutzia naseana Nakai
• Ningpo-Deutzie ( Deutzia ningpoensis Rehder ): It occurs in Anhui, Fujian, Hubei, Jiangxi, Shaanxi and Zhejiang.
• Deutzia oaxacana Zaik. : It was first described from Mexico.
• Deutzia obtusilobata S.M. Hwang : It occurs in western Sichuan.
• Deutzia occidentalis Standl. : It occurs in three varieties in China, Korea and Russia.
• Deutzia ogatai Koidz.
• Deutzia ovalis Fedde
• Deutzia paniculata Nakai
• Small-flowered Deutzia ( Deutzia parviflora Bunge )
• Deutzia pilosa Rehder : It occurs in Gansu, Guizhou, Sichuan, Yunnan and maybe also in Shaanxi.
• Deutzia pringlei C.K. Schneid.
• Deutzia pulchra S.Vidal : It occurs in the Philippines and Taiwan.
• Purple Deutzia ( Deutzia purpurascens (Franch. Ex L.Henry) Rehder ): It occurs in India, Myanmar and China and there at altitudes between 2600 and 3500 meters.
• Deutzia rehderiana C.K. Schneid. : It occurs in Guizhou, Sichuan and Yunnan.
• Deutzia rubens Rehder : It occurs in Gansu, Hubei, Shaanxi and Sichuan at altitudes between 2100 and 3000 meters.
• Rough Deutzia ( Deutzia scabra Thunb. )
• Deutzia schneideriana Rehder : It occurs in Anhui, Gansu, Hubei, Hunan, Jiangxi and maybe also in Zhejiang.
• Sichuan Deutzie ( Deutzia setchuenensis Franch. ): It occurs in three varieties in Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Sichuan and Yunnan.
• Deutzia setifera Zaik. : It was first described from Yunnan.
• Deutzia silvestrii Pamp. : It occurs in Hubei.
• Deutzia squamosa S.M. Hwang : It occurs in southern Sichuan.
• Deutzia staminea R.Br. ex Wall. : It occurs in Bhutan, Kashmir, Nepal, Sikkim and in China at altitudes between 2000 and 3000 meters.
• Deutzia subulata Hand.-Mazz. : It occurs in Sichuan and Yunnan at altitudes between 2000 and 2500 meters.
• Deutzia taibaiensis W.T.Wang ex SMHwang : It occurs in Gansu and Shaanxi.
• Deutzia taiwanensis (Maxim.) CC cutting. : It occurs in Taiwan at altitudes between 300 and 2500 meters.
• Deutzia uniflora Shirai : It occurs in western Honshu.
• Deutzia wardiana Zaik. : It occurs in India and in Xizang.
• Deutzia yaeyamensis Ohwi : It wasfirst describedby the Ryūkyū Islands .
• Deutzia yunnanensis S.M.Hwang : It occurs in northwestern Yunnan.
• Deutzia zentaroana Nakai : It was first described from Japan,
• Deutzia zhongdianensis S.M. Hwang : It occurs in northwestern Yunnan at altitudes between 2100 and 3500 meters.

Ornamental plant

Deutzias are often grown as ornamental plants because of their white flowers. Many cultivars and hybrids were selected for use in the garden, including varieties with double flowers . For example, Deutzia x lemoinei is a hybrid of Deutzia gracilis and Deutzia parviflora . Identification can be difficult, so many of the plants sold as Deutzia scabra actually belong to the species Deutzia crenata .

proof

literature

• L. Hufford: Hydrangeaceae. In: Klaus Kubitzki (Ed.): The Families and Genera of Vascular Plants - Volume VI - Flowering Plants - Dicotyledons - Celastrales, Oxalidales, Rosales, Cornales, Ericales , 2004, pp. 209-210, ISBN 978-3-540- 06512-8
• Andreas Roloff , Andreas Bärtels: Flora of the woods. Purpose, properties and use. With a winter key from Bernd Schulz. 3rd, corrected edition. Eugen Ulmer, Stuttgart (Hohenheim) 2008, ISBN 978-3-8001-5614-6 , p. 261.

Individual evidence

1. ↑ ^{a b c d} Roloff et al .: Flora der Gehölze , p. 261
2. ↑ [1]
3. ↑ Deutzia. In: The Plant List. Retrieved May 8, 2012 . 
4. ↑ ^{a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax} Huang Shumei (Hwang Shu-mei); Hideaki Ohba; Shinobu Akiyama: Deutzia Thunberg . - Same text online as the printed work , In: Wu Zheng-yi, Peter H. Raven, Deyuan Hong (Ed.): Flora of China. Volume 8: Saxifragaceae. Science Press and Missouri Botanical Garden Press, Beijing and St. Louis 2010
5. ^ ^{A b c} Deutzia in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved October 25, 2018.
6. ↑ ^{a b c d e f g h} German name according to Roloff et al .: Flora of the woods , pp. 261–266

Web links

Commons : Deutzien ( Deutzia )  - collection of pictures, videos and audio files

• Flora of China - Deutzia .