Aeonium leucoblepharum 冬炎

LEUCOBLEPHARUM Webb ex A. Richard, 1848 冬炎
"leucoblepharum"意为"From the Greek leukos (white) and blepharis (eyelash); for the thin white leaf margins(来自希腊语.leukos(白色)和blepharis(睫毛);薄白叶缘.)"叶缘薄白,恰似冬季萌霜,而其叶火红,因此拟名为冬炎.

©Liz21UK
Synonyms :
异名:
Sempervivum leucoblepharum (Webb ex A. Richard) Hutchison & E. A. Bruce (1941)
Sempervivum chrysanthum  Hochstetter ex Britten (1871) / Aeonium chrysanthum  (Hochstetter ex Britten) A. Berger (1930)
Sempervivum chrysanthum var. glabrum  Chiovenda (1919)
Sempervivum chrysanthum var. glandulosum  Chiovenda (1919) / Aeonium leucoblepharum var. glandulosum  (Chiovenda) Cufodontis (1969)
Distribution : Yemen, E. Africa, (Ethiopia, Somalia, Kenya, Uganda); ca. 2000 – 3500 m.
分布:也门,东非,(埃塞俄比亚,索马里,肯尼亚,乌干达);约海拔2000 - 3500m地区.
Description (according to IHSP, 2003) :
描述(根据IHSP,2003):
Perennial branched subshrubs to 2 m.
多年生群生亚灌木,成株可达2m.
Branches ascending to decumbent, usually in groups, 7 – 20 mm in diameter, glabrous, smooth.
分枝上升或匍匐,通常群生,直径7 - 20mm,无毛,光滑.
Rosettes 10 – 20 cm in diameter, centre flattened.
莲座直径10 - 20cm,中心生长点附近扁平.
Leaves 5 – 12 x 1.5 – 3-5 cm, 2 – 5 mm thick, oblanceolate- to obovate-spatulate, apically acuminate, basally cuneate, margin with straight or curved cilia (0.4 – 1 mm), glabrate, yellowish-green to dark green, usually reddish variegated along margin.
叶长5 - 12cm,宽1.5 - 3-5cm,厚2 - 5mm,倒披针形至倒卵状匙形,先端渐尖，基部楔形,边缘具直或弯曲的纤毛( 0.4 - 1mm), 光滑,叶呈黄绿色至深绿色,通常叶缘微红有杂色.
Inflorescence 3 – 15 cm, pedicels 1 – 6 mm, puberulent.
花序高3 - 15cm,花梗长1 - 6mm,被微柔毛.
Flowers 7- to 10-merous, sepals sparsely puberulent, petals 6 – 8 x 1.8 – 2.5 mm, elliptic or lanceolate, retuse, yellow, occasionally reddish variegated, filaments glabrous to sparsely puberulent.
花基数7 - 10,萼片疏生柔毛,花瓣长6 - 8 mm,1.8 - 2.5mm,椭圆形或披针形,微凹,呈黄色,有时带红色的杂色,花丝无毛到疏被微柔毛.
Cytology : 2n=36
染色体:2n=36 即 n=18

Note :
附记:
A. leucoblepharum is one of two east African species, the other being A. stuessyi. It "is extremely variable, which is not surprising considering its 1800 km range across a wide variety of isolated mountainous habitats. The species is locally common on rocks and cliffs  at 200 – 3500m. Many of its known habitats are in isolated moist and forested mountain ranges which rise up out of the surrounding semi-arid and desert habitats.
A. leucoblepharum can be erect to 2 m or almost stemless and densely clumping." (Rudolf Schulz :"Aeonium in habitat and cultivation", 2007, p. 136 – 137)
Aeonium leucoblepharum一至两东非品种，另一个是Aeonium stuessyi .它"是一个变数极大的品种,这并不奇怪,尤其是考虑到在各种不同的孤立的山地栖息地及其1800公里范围.该品种是在海拔200 - 3500米的岩石和峭壁常见的.它的许多已知的栖息地是孤立的半干旱地区,沙漠栖息地,潮湿的森林和山脉.
Aeonium leucoblepharum可直立到2米或几乎无茎抑或浓密丛生" (鲁道夫·舒尔茨: " 2007 Aeonium的栖息地和栽培学",第136 - 137页)









Aeonium leucoblepharum 开花至主头死亡,再到主头处萌发新芽的过程.
Photos Bouke Clement




一颗参赛级的冬炎.
©Pseudolithos



©alloe.


©carlesjbox


Aeonium leucoblepharum var. leucoblepharum
©Eric Hunt


©FarOutFlora


©KarlGercens



冬季的冬炎.
©landruc


©succulentville80

Aeonium leucoblepharum 冬炎 ,色彩艳丽,枝干狂放,充满野性气质,而园艺种植下优雅大气,不失为小型种Aeonium中的精品.
资料来源:ICN 有谬误之处敬请指正.
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