截裂翻白树Pterospermum truncatolobatum
中文名(Chinese Name):截裂翻白树
学名(Scientific Name):Pterospermum truncatolobatum Gagnep.
英文名(English Common Name):
别名(Chinese Common Name):珙裂翅子树
异名(Synonym):
科属(Family & Genus):梧桐科(Sterculiaceae)翅子树属
形态特征(Description):乔木,高达16米;树皮黑色,有纵裂纹;小枝幼嫩部分密被黄褐色星状绒毛,后变为灰白色或淡黄灰色星状绒毛或几无毛。叶革质,矩圆状倒梯形,长8-16厘米,宽3.5-11厘米,顶端截形并有3-5裂,中间的裂片急尖或渐尖,长1-2厘米,叶的基部心形或斜心形,上面无毛或仅在主脉上略被毛,下面密被灰白色和黄褐色星状绒毛,基生脉5-7条;托叶掌状3-5条裂,密被毛,早落;叶柄粗壮,长约4-12毫米。花腋生,单生,几无柄;小苞片条状裂;萼分裂几至基部,萼片5枚,较厚,条形,长4.5-6.5厘米,宽4毫米,外面密被褐色绒毛,内面被银白色长柔毛;花瓣5片,条状镰刀形,长3-6厘米,宽4-5毫米,基部渐狭,无毛;退化雄蕊5枚,线状,长5厘米,无毛;雄蕊15枚,长3.5厘米,每3枚集合成群与退化雄蕊互生;子房卵形,被毛。蒴果木质,卵圆形或卵状矩圆形,有明显的5棱和5条很深的沟,外形很像“杨桃”,长达12厘米,宽约7厘米,基部收缩成长2-3厘米宽1厘米的柄并与长约8毫米的果柄连接,外面密被褐色星状绒毛,有或无瘤状突起,每室有种子6-10个,排成2列;种子具翅,连翅长4-5.5厘米,翅膜质,条形,长达4. 4厘米,顶端钝或截形。花期7月。
分布(Distribution):产云南和广西等地,生于海拔300-520米的石灰岩山上密林中。越南北部也有。
用途(Use):
引自中国植物志英文版:FOC Vol. 12 Page 327, 328
Pterospermum truncatolobatum Gagnepain, Notul. Syst. (Paris). 1: 84. 1909.
截裂翅子树 jie lie chi zi shu| Sterculiaceae | Pterospermum
Trees, to 16 m tall; bark black, striate. Branchlets densely yellow-brown stellate tomentose when young, becoming gray-white or yellowish gray stellate tomentose or nearly glabrous. Stipules palmately 3-5-fimbriate, densely hairy, caducous; petiole robust, 4-12 mm; leaf blade oblong-obovate in outline, usually irregularly lobed, 8-16 × 3.5-11 cm, leathery, abaxially densely gray-white or yellow-brown stellate tomentose, adaxially glabrous or minutely hairy along midrib, base cordate or obliquely cordate, apex truncate and 3-5-lobed, central lobe acute or acuminate, 1-2 cm. Flowers solitary, nearly sessile; epicalyx lobes fimbriate. Sepals linear, relatively thick, 4.5-6.5 × ca. 0.4 cm, abaxially densely brown tomentose, adaxially silvery white villous. Petals linear-falcate, 3-6 × 0.4-0.5 cm, base tapering. Stamens ca. 3.5 cm; staminodes filiform, ca. 5 cm, glabrous. Ovary ovoid, hairy. Fruiting pedicel to 8 mm; capsule woody, ovoid or ovoid-cylindrical, prominently 5-angular and 5-grooved, ca. 12 × 7 cm, densely brown stellate tomentose, verrucose or not, base narrowed into 2-3 × ca. 1 cm stipe. Seeds 6-10 per locule, in 2 rows, 4-5.5 cm including wing, wing linear, up to 4.4 cm, apex obtuse or truncate. Fl. Jul.
Dense forests on limestone; 300-500 m. SE Guangxi (Ningming, Longzhou), SE Yunnan (Jinping) [N Vietnam].
(责任编辑:徐晔春)
学名(Scientific Name):Pterospermum truncatolobatum Gagnep.
英文名(English Common Name):
别名(Chinese Common Name):珙裂翅子树
异名(Synonym):
科属(Family & Genus):梧桐科(Sterculiaceae)翅子树属
形态特征(Description):乔木,高达16米;树皮黑色,有纵裂纹;小枝幼嫩部分密被黄褐色星状绒毛,后变为灰白色或淡黄灰色星状绒毛或几无毛。叶革质,矩圆状倒梯形,长8-16厘米,宽3.5-11厘米,顶端截形并有3-5裂,中间的裂片急尖或渐尖,长1-2厘米,叶的基部心形或斜心形,上面无毛或仅在主脉上略被毛,下面密被灰白色和黄褐色星状绒毛,基生脉5-7条;托叶掌状3-5条裂,密被毛,早落;叶柄粗壮,长约4-12毫米。花腋生,单生,几无柄;小苞片条状裂;萼分裂几至基部,萼片5枚,较厚,条形,长4.5-6.5厘米,宽4毫米,外面密被褐色绒毛,内面被银白色长柔毛;花瓣5片,条状镰刀形,长3-6厘米,宽4-5毫米,基部渐狭,无毛;退化雄蕊5枚,线状,长5厘米,无毛;雄蕊15枚,长3.5厘米,每3枚集合成群与退化雄蕊互生;子房卵形,被毛。蒴果木质,卵圆形或卵状矩圆形,有明显的5棱和5条很深的沟,外形很像“杨桃”,长达12厘米,宽约7厘米,基部收缩成长2-3厘米宽1厘米的柄并与长约8毫米的果柄连接,外面密被褐色星状绒毛,有或无瘤状突起,每室有种子6-10个,排成2列;种子具翅,连翅长4-5.5厘米,翅膜质,条形,长达4. 4厘米,顶端钝或截形。花期7月。
分布(Distribution):产云南和广西等地,生于海拔300-520米的石灰岩山上密林中。越南北部也有。
用途(Use):
引自中国植物志英文版:FOC Vol. 12 Page 327, 328
Pterospermum truncatolobatum Gagnepain, Notul. Syst. (Paris). 1: 84. 1909.
截裂翅子树 jie lie chi zi shu| Sterculiaceae | Pterospermum
Trees, to 16 m tall; bark black, striate. Branchlets densely yellow-brown stellate tomentose when young, becoming gray-white or yellowish gray stellate tomentose or nearly glabrous. Stipules palmately 3-5-fimbriate, densely hairy, caducous; petiole robust, 4-12 mm; leaf blade oblong-obovate in outline, usually irregularly lobed, 8-16 × 3.5-11 cm, leathery, abaxially densely gray-white or yellow-brown stellate tomentose, adaxially glabrous or minutely hairy along midrib, base cordate or obliquely cordate, apex truncate and 3-5-lobed, central lobe acute or acuminate, 1-2 cm. Flowers solitary, nearly sessile; epicalyx lobes fimbriate. Sepals linear, relatively thick, 4.5-6.5 × ca. 0.4 cm, abaxially densely brown tomentose, adaxially silvery white villous. Petals linear-falcate, 3-6 × 0.4-0.5 cm, base tapering. Stamens ca. 3.5 cm; staminodes filiform, ca. 5 cm, glabrous. Ovary ovoid, hairy. Fruiting pedicel to 8 mm; capsule woody, ovoid or ovoid-cylindrical, prominently 5-angular and 5-grooved, ca. 12 × 7 cm, densely brown stellate tomentose, verrucose or not, base narrowed into 2-3 × ca. 1 cm stipe. Seeds 6-10 per locule, in 2 rows, 4-5.5 cm including wing, wing linear, up to 4.4 cm, apex obtuse or truncate. Fl. Jul.
Dense forests on limestone; 300-500 m. SE Guangxi (Ningming, Longzhou), SE Yunnan (Jinping) [N Vietnam].
(责任编辑:徐晔春)
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