台灣柃木屬物種註記

山羊百科，林文智老師的植物、山岳、攝影紀錄

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五列木科　Pentaphylacaceae

茶科　Theaceae

目錄

柃木屬　Eurya

日前重新檢視圖檔，才發現拍一堆花柱5裂的物種，目前台灣植物誌論述此屬物種的雌花花柱多為3裂，只好重新仔細檢視相關的論述，目前只能先比對台灣列舉的學名，匯整各地區的論述。
目前台灣柃木屬物種的論述匯整The Plant List與Tropicos的資料，出現不太一致，所以，目前將台灣植物誌與中國植物誌的性狀特徵論述匯整，如此方便日後比對。
屬以下分類的共同特徵引用中國植物誌的文字論述，物種特徵依據台灣植物誌英文第二版中國植物誌，兩地的的檢索表與性狀特徵論述常出現矛盾，且不太一樣，只能盡力比對。

柃亞屬　Subgenus. Eurya

葉排成二列；花瓣膜質，花藥較花絲為短。

真柃組　Sect. Eurya

花藥不具分格；子房無毛。

短柱柃系　Ser. Brevistylae

花柱長0.5-1毫米。萼片膜質或近膜質。

假柃木　Eurya crenatifolia

Pseudoeurya crenatifolia Yamamoto → Eurya crenatifolia (Yiamamoto) Kobuski
Young branches grayish brown to grayish white, glabrous; current year branchlets terete, pubescent; terminal buds sparsely pubescent.
Petiole 1-1.5 mm, pubescent or glabrescent; leaf blade elliptic to obovate-oblong, 1-2.5 × 0.8-1.5 cm, leathery
Flowers axillary, solitary or to 4 in a cluster. Pedicel 1.5-2 mm, glabrous. Male flowers: stamens 5; Female flowers: ovary globose, glabrous, 3-loculed; style ca. 1 mm, apically 3-parted.

薄葉柃木　Eurya leptophylla Hayata

Young branches grayish brown, glabrous or glabrescent; current year branchlets terete, slender, densely yellowish brown pubescent; terminal buds pubescent.
Male flowers: stamens 7 or 8;Female flowers: ovary ovoid, glabrous, 3-loculed; style ca. 1 mm, apically 3-lobed.

柃系　Ser. Eurya

花柱長2-4毫米。萼片圓形，膜質，乾後淡綠色；嫩枝有2-4棱，連同頂芽均無毛或被被短柔毛。

米碎柃木　Eurya chinensis

Eurya japonica Thunb. var. parvifolia (Gardner) Thwaites → ???
Eurya parvifolia Gardner → Eurya chinensis R. Br.
Young branches grayish brown, 2-ribbed, glabrous; current year branchlets yellowish green to yellowish brown, 2-ribbed, pubescent; terminal buds densely yellowish brown pubescent
Petiole 2-3 mm; leaf blade obovate to obovate-elliptic, 2-5.5 × 1-2 cm, thinly leathery,
Flowers axillary, solitary or to 4 in a cluster. Pedicel ca. 2 mm, glabrous. Male flowers:stamens ca. 15;Female flowers: ovary ovoid, glabrous; style 1.5-2 mm, apically 3-lobed. Fruit purplish black when mature, globose to rarely ovoid, 3-4 mm in diam. Seeds blackish brown, reniform, shiny.

柃木　Eurya japonica Thunb.


  • Eurya japonica var. microphylla Blume；Blume, Mus. Bot. 2: 106 1856.


Eurya japonica Thunb. f. angustifolia (Koidz.) H.Hara；http://ylist.info/ylist_detail_display.php?pass=46203


早田氏柃木　Eurya hayatae



Eurya hayatae Yamam.；http://ylist.info/ylist_detail_display.php?pass=39603


南仁山柃木　Eurya nanjenshanensis

Eurya nanjenshanensis (Hsieh, Ling & Yang) S. Z.Yang & S.Y. Lu → 光葉柃木　Eurya nitida Korth.


光葉柃木　Eurya nitida

Eurya japonica auct. non Thunb.
南仁山柃木　Eurya nanjenshanensis (Hsieh, Ling & Yang) S. Z.Yang & S.Y. Lu
Young branches grayish brown; current year branchlets yellowish green, slender, 2-ribbed, glabrous; terminal buds to 1 cm, glabrous.
Petiole 2-5 mm, glabrous; leaf blade elliptic, oblong-elliptic, or obovate-oblong, (3-)4-6(-7) × 1.5-2.5 cm.
Flowers axillary, solitary or to 4 in a cluster. Pedicel 2-3 mm, slender, glabrous. Male flowers: stamens 14-20. Female flowers: ovary ovoid, glabrous, 3-loculed; style 1.5-3 mm, apically 3-lobed.

蓮華池柃木　Eurya rengechiensis

長柱柃系　Ser. Longistylae

花柱长2-4毫米。萼片革质或近革质，乾後褐色；嫩枝圆柱形，连同顶芽均被披散柔毛、短柔毛或微毛，至少顶芽被短柔毛。

銳葉柃木　Eurya acuminata DC.

Young branches grayish brown, glabrous; current year branchlets reddish brown, densely pubescent; terminal buds densely pubescent.
Petiole 3-6 mm, pubescent; leaf blade lanceolate, oblong-lanceolate, or rarely ovate-oblong, 5.5-9.5 × 1.5-2.5 cm, papery to thinly leathery.
Flowers axillary, solitary or to 3 in a cluster. Pedicel 2-3 mm, pubescent. Male flowers:stamens 15-20; anthers not locellate; pistillode glabrous. Female flowers:ovary globose, glabrous, 3-loculed; style 2-3 mm, apically 3-5-lobed or parted.

細枝柃木　Eurya loquaiana

Eurya arisanensis Hayata → 銳葉柃木　Eurya acuminata DC.
Eurya matsudai Hayata
Eurya matsudae Hayata → 銳葉柃木　Eurya acuminata DC.
Eurya glaberrima Hayata var. acuminata Suzuki
Eurya suzukii Yamamoto → 銳葉柃木　Eurya acuminata DC.
Eurya acuminata DC. var. suzukii (Yamamoto) Keng → 銳葉柃木　Eurya acuminata DC.
Eurya acuminata DC. var. arisanensis (Hayata) Keng → 銳葉柃木　Eurya acuminata DC.

格葯柃組　Sect. Meristocheca

花藥具分格；子房被柔毛或無毛。

長毛柃系　Ser. Ciliatae

子房和果實均被柔毛，至少子房初期被疏柔毛。

粗毛柃木　Eurya strigillosa

Eurya acuminata auct. non DC.
Young branchlets grayish brown, glabrous or glabrescent; current year branchlets terete, densely yellowish brown spreading villous; terminal buds yellowish brown villous.
Petiole less than 1 mm, densely strigillose; leaf blade lanceolate, 6-11 × 1.5-2.5 cm, thinly leathery to leathery.
Flowers axillary, solitary or to 3 in a cluster. Pedicel ca. 0.5 mm. Male flowers: stamens ca. 15. Female flowers: ovary globose, densely pubescent, 3-loculed; styles 3, distinct, ca. 1.5 mm. Fruit globose, densely yellowish brown pubescent.

浸水營柃木　Eurya lui

格葯柃系　Ser. Muricatae

子房和果實均無毛。花柱長1-2毫米；嫩枝圓柱形，稀具2棱。

凹葉柃木　Eurya emarginata

厚葉柃木　Eurya glaberrima

厚葉柃木　Eurya glaberrima Hayata var. glaberrima
Young branches reddish brown, glabrous; current year branchlets yellowish green, slightly 2-ribbed, glabrous; terminal buds glabrous.
Petiole 2-4 mm, glabrous; leaf blade lanceolate to oblong-lanceolate, 4-8 × 1.2-2.4 cm, leathery.
Flowers axillary, solitary or to 3 in a cluster. Pedicel 1.5-2 mm, glabrous. Male flowers: stamens 6-10. Female flowers:ovary ovoid, glabrous; style ca. 1 mm, 3-parted to base.

清水山柃木　Eurya taitungensis Chang

Eurya glaberrima Hayata var. taitungensis (Chang) Y. P. Yang & S. Z. Yang → Eurya glaberrima Hayata

台灣格柃　Eurya septata Chi C. Wu, Z. F. Hsu & C. H. Tsou



毛果柃系　Ser. Trichocarpae

萼片圓形，頂端有微凹或小尖頭，膜質或近膜質，乾後淡綠色或黃褐色；嫩枝被短柔毛或披散柔毛。

毛果柃木　Eurya gnaphalocarpa

清水山柃木　Eurya taitungensis



Genus Reference

  1. Liao, Chi-Cheng, Mong-Huai Su 2015 Confirmation of the Existence of Eurya japonica Thunb. (Pentaphylacaceae) in Taiwan Taiwan J For Sci 30(2): 139-46
  2. Wu, Yi-Hung, Chien-Ti Chao, Yen-Hsueh Tseng 2015 Eurya lui (Pentaphylacaceae), A New Species in Taiwan Quarterly Journal of Forest Research 37(4)：219-228
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