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標題: [植物學知識] 怎樣分辨複羽葉欒樹和台灣欒樹 (無患子科)﹖ [打印本頁]

作者: paulvps    時間: 2006-11-26 21:09     標題: 怎樣分辨複羽葉欒樹和台灣欒樹 (無患子科)﹖

Koelreuteria henryi 台灣欒樹
Koelreuteria bipinnata複羽葉欒樹

這兩種欒樹極之相似﹐請問怎樣去辨別﹖

Thanks

[ 本帖最後由 Sze 於 2008-10-10 21:36 編輯 ]
作者: Cecily    時間: 2006-11-26 23:24

Koelreuteria bipinnata

Trees. Branches tuberculate, lenticels orbicular to elliptic. Leaves spreading, bipinnate, axes and adaxial surface of petiole often with one line appressed pubescent; leaflets 9–17, alternate, rarely opposite; petiolules short or leaflets subsessile; blades obliquely ovate, papery or subleathery, abaxially densely pubescent, adaxially glabrous or hairs on midvein, base broadly cuneate or rounded, slightly oblique, margin incurved serrate or sometimes entire. Thyrses spreading, large, hairy. Calyx 5-lobed to middle; sepals broadly triangular or elliptic, hispidulous and fimbriate glandular, margin erose. Petals 4. Stamens 8, filaments spreading white villous; anthers short and sparsely hairy. Ovary trigonous-ellipsoid, pilose. Capsules pale purplish red, brown when mature, ellipsoid or subglobose, 3-ridged, apex obtuse or rounded, mucronate; carpels ellipsoid to subcordiform, abaxially reticulate veined, adaxially shiny. Seeds subglobose.

3. Koelreuteria elegans (=Koelreuteria henryi)

Trees. Branches ridged, pubescent. Leaves bipinnate, with long petiole; leaflets 5–13; blades oblong-ovate, varied in shape and size, subleathery, abaxially glabrous or only barbate at vein axils, base extremely oblique, margin slightly incurved serrate or nearly entire below middle, apex long acuminate to caudate. Thyrses terminal, large, branches and pedicels pubescent. Flowers yellow, Sepals 5, oval or ovate-triangular, ciliate. Petals 5, lanceolate or oblong, with 2-lobed, tuberculate toothed scale, claw hairy. Stamens 7 or 8; filaments hairy. Capsules inflated, ellipsoid, 3-ridged. Seeds black and globose.
endemic species in Taiwan

Cecily
作者: paulvps    時間: 2006-11-26 23:30



QUOTE:
原帖由 Cecily 於 2006-11-26 23:24 發表
Koelreuteria bipinnata

Trees. Branches tuberculate, lenticels orbicular to elliptic. Leaves spreading, bipinnate, axes and adaxial surface of petiole often with one line appressed pubescent; le ...

從發現居家附近的欒樹開花至今差不多一個月了﹐還沒搞清怎樣分辨。
Thanks very much.
作者: senyung    時間: 2006-11-27 18:05



QUOTE:
原帖由 paulvps 於 2006-11-26 21:09 發表
Koelreuteria henryi 台灣欒樹
Koelreuteria bipinnata複羽葉欒樹

這兩種欒樹極之相似﹐請問怎樣去辨別﹖

Thanks

不用分的, 香港理論上找不到台灣欒樹
作者: paulvps    時間: 2006-11-27 20:55



QUOTE:
原帖由 senyung 於 2006-11-27 18:05 發表

不用分的, 香港理論上找不到台灣欒樹

Thanks senyung. 曾有人問是否異名同種,為此而找答案。
作者: skyblue    時間: 2007-1-11 11:02

香港有些台灣欒樹是人工栽種的.
作者: paulvps    時間: 2007-1-11 17:32



QUOTE:
原帖由 skyblue 於 2007-1-11 11:02 發表
香港有些台灣欒樹是人工栽種的.

請問種在那裏﹖
作者: senyung    時間: 2007-1-11 18:42

我也有興趣去看看, 知多一點點嘛
作者: Iguana    時間: 2012-4-29 11:14

台灣欒樹是2,3係回羽狀,複羽葉欒樹是2回羽狀。
作者: geographist    時間: 2012-10-23 13:30

鋼綫灣道  have 複羽葉欒樹 和 台灣欒樹 together??







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