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        浙江薊屬(菊科)二新種

        2021-03-22 03:24:34魯益飛陳征海孫文燕金孝鋒
        植物資源與環(huán)境學報 2021年1期
        關鍵詞:浙江針刺

        魯益飛, 陳征海, 孫文燕, 金孝鋒,①

        (1. 浙江大學生命科學學院, 浙江 杭州 310058;2. 杭州師范大學生命與環(huán)境科學學院 浙江省藥用植物遺傳改良和質(zhì)量控制技術重點實驗室, 浙江 杭州 311121;3. 浙江省森林資源監(jiān)測中心, 浙江 杭州 310020)

        菊科(Asteraceae)是有花植物種類最多的科,全世界有1 600多屬24 000多種[1]1-2。中國分布的菊科植物有2 336種,隸屬于15族248屬[1]1-8,[2]。全世界薊屬(CirsiumMill.)植物有250~300種,廣布于北溫帶及亞熱帶地區(qū)[1]160-175,[3-5]。中國分布的薊屬植物有46種,其中近一半為中國特有種[1]1-2,[5]。本屬用于種類鑒定的形態(tài)性狀主要包括葉片形狀和質(zhì)地、花期時基生葉存在與否、頭狀花序直立或下垂、總苞片層數(shù)以及外層總苞片是否密被細小黏質(zhì)腺體[3-4,6]。

        作者所在課題組在承擔《浙江植物志》(新編)菊科的編研過程中,對浙江及鄰近地區(qū)的菊科植物進行了調(diào)查、采集和鑒定以及相關標本的查閱,從中發(fā)現(xiàn)了薊屬2個新種,這2個新種的花均于秋季至初冬開放,開花時頭狀花序下垂,二者具體的形態(tài)特征描述如下:

        浙江垂頭薊 新種(圖1,圖2)

        CirsiumzhejiangenseZ. H. Chen et X. F. Jin, sp. nov. (Fig. 1, Fig. 2)

        Haec species novaC.yezoenso(Maxim.) Makino affinis est, sed a qua involucri phyllis 5- vel 6-seriatis, exterioribus interioribus brevioribus, laminis minoribus, 15-32 cm longis, 6-15 cm latis, supra sparse villosis, subtus sparse pubescentibus differt.

        Type: China. Zhejiang (浙江), Pan’an (磐安), Weixin (維新), Lingjiangyuan (靈江源), E120°39′38.03″, N28°57′49.32″, by stream under forest, alt. 550 m, 26 Nov. 2013, X. F. Jin & T. T. Yu (金孝鋒和余婷婷) 3202 (holotype, ZM; isotypes, HTC, PE).

        A: 生境Habitat; B: 基生葉Basal leaves; C: 葉片上面,示顏色及毛被Upper surface of leaf, showing color and indumentum; D,E: 頭狀花序排列式樣Arranging pattern of capitula; F: 葉片下面,示顏色及毛被Lower surface of leaf, showing color and indumentum; G: 頭狀花序,示總苞及總苞片Capitulum, showing involucre and phyllaries; H: 瘦果Achenes.

        Perennial herbs. Roots tuberous, fusiform, 0.8-1.0 cm in diameter, obliquely ascending. Stems erect, 40-70 cm tall, slightly ribbed, simplex or branched on upper part, nearly glabrous, or sparsely to densely white villose under capitula. Basal leaves rosulate; blade ovate-elliptic, elliptic or long-elliptic, 15-32 cm long, 6-15 cm wide, adaxially dark green, sparsely brown villose, abaxially pale green, sparsely pubescent and rather densely along veins, pinnatilobate to pinnatifid, sometimes pinnatipartite, base narrowed into a long winged petiole; lateral lobes 3-6 pairs, ovate, ovate-elliptic, elliptic or long-triangular, margin irregularly lobed or incised, lobe margin unequal toothed, with an apical spinule 3.0-5.0 mm long; terminal lobes lanceolate or ovate-lanceolate, margin unequal teeth with a ca. 1.0 mm apical spinule. Cauline leaves alternate; blade ovate, ovate-elliptic, elliptic or oblong-elliptic, 8-20 cm long, 4-12 cm wide, adaxially dark green, sparsely brown villose, abaxially pale green, sparsely pubescent and rather densely along veins, pinnatilobate, pinnatifid to pinnatipartite, base auriculate. Capitula 3-5, racemose, rarely solitary, nodding. Involucre bowl-like or broadly campanulate, 1.5-3.0 cm in diameter. Phyllaries in 5 or 6 rows, obliquely patent, outer ones shorter than inner ones; outer phyllaries lanceolate or ovate-lanceolate, 6.0-7.0 mm long, 1.5-2.0 mm wide, upper margin ciliate, with densely minute glands on outside surfaces, apex with a ca. 1.0 mm long spinule; middle phyllaries ovate-lanceolate or lanceolate, 11.0-17.0 mm long, 2.5-3.0 mm wide, upper margin ciliate or entire, with densely minute glands on outside surfaces, apex with a ca. 1.0 mm long spinule; inner phyllaries lanceolate, 17.0-19.0 mm long, 1.5-2.0 mm wide, upper margin ciliate or entire, with densely minute glands on outside surfaces, apex with a ca. 1.0 mm long spinule. Achenes slightly compressed, long-obovoid, brown, 5.0-5.5 mm long, 2.0-2.5 mm wide, apex obliquely truncate. Florets bisexual; corolla purplish-pink or purple, 18.0-20.0 mm long, limb 9.0-11.0 mm long, 5-lobed, tube 9.0-10.0 mm long. Pappus pale brown, base connate; bristles pinnate, 14.0-17.0 mm long.

        多年生草本。塊根紡錘形,直徑0.8~1.0 cm,斜伸。莖直立,高40~70 cm,微具棱,不分枝或上部分枝,近無毛,或疏被白色長柔毛,至頭狀花序下密被白色長柔毛?;~蓮座狀;葉片卵狀橢圓形、橢圓形或長橢圓形,長15~32 cm,寬6~15 cm,上面深綠色,疏被褐色長柔毛,下面淡綠色,疏被短柔毛,沿脈較密,羽狀淺裂至中裂,有時羽狀深裂,基部漸狹成具翼長柄;側裂片3~6對,卵形、卵狀橢圓形、橢圓形或長三角形,邊緣不等淺裂或缺刻狀齒裂,小裂片或裂齒邊緣具大小不等的鋸齒,齒端具針刺,針刺長3.0~5.0 mm;頂裂片披針形或卵狀披針形,邊緣疏具大小不等的鋸齒,齒端具短針刺,針刺長約1.0 mm。莖生葉互生;葉片卵形、卵狀橢圓形、橢圓形或長圓狀橢圓形,長8~20 cm,寬4~12 cm,上面深綠色,疏被褐色長柔毛,下面淡綠色,疏被短柔毛,沿脈較密,羽狀淺裂、中裂至深裂,基部耳形。頭狀花序3~5個排列呈總狀,稀單一頂生,下垂??偘胄位驈V鐘形,直徑1.5~3.0 cm。總苞片5或6層,向外斜展,外層短而向內(nèi)漸變長;外層總苞片披針形或卵狀披針形,長6.0~7.0 mm,寬1.5~2.0 mm,上部邊緣具睫毛,背面密被細腺毛,頂端具長約1.0 mm的針刺;中層總苞片卵狀披針形或披針形,長11.0~17.0 mm,寬2.5~3.0 mm,上部邊緣具睫毛或無,背面密被細腺毛,頂端具長約1.0 mm的針刺;內(nèi)層總苞片披針形,長17.0~19.0 mm,寬1.5~2.0 mm,上部邊緣具睫毛或無,背面密被細腺毛,頂端具長約1.0 mm的針刺。瘦果稍壓扁,倒長卵形,褐色,長5.0~5.5 mm,寬2.0~2.5 mm,頂端斜截。小花兩性;花冠粉紫色或紫色,長18.0~20.0 mm,檐部長9.0~11.0 mm,5裂,細管部長9.0~10.0 mm。冠毛淺褐色,基部聯(lián)合成環(huán);冠毛剛毛羽毛狀,長14.0~17.0 mm。

        其他標本:China. Zhejiang (浙江), Lin’an (臨安), West Tianmushan (西天目山), on slope under forest, alt. 1 000 m, 15 Nov. 2013, X. F. Jin & T. T. Yu (金孝鋒和余婷婷) 3207 (HTC), alt. 1 100 m, 10 Oct. 2011, S. Z. Yang & Z. H. Chen (楊淑貞和陳征海) TMS20111010 (HTC), 3 Aug. 1957, X. Y. He (賀賢育) 25203 (HHBG), 16 Oct. 1951, X. Y. He (賀賢育) 0031 (HHBG), X. Y. He (賀賢育) 1716 (HHBG), 5 Nov. 1958, anonymous 31363 (HHBG), Qingliangfeng (清涼峰), at forest margin, alt. 900 m, 2 Nov. 2011, Z. H. Chen & G. Y. Li (陳征海和李根有) QLF20111103 (HTC, ZM), QLF20111104 (HTC, ZM), 16 Nov. 2013, X. F. Jin & T. T. Yu (金孝鋒和余婷婷) 3208 (HTC); Ningbo (寧波), Fenghua (奉化), Dayan (大雁), 9 Nov. 2013, Z. H. Chen (陳征海) s.n. (HTC), Yinzhou (鄞州), 10 Nov. 2013, Z. H. Chen (陳征海) s.n. (HTC, ZM); Pan’an (磐安), Weixin (維新), Lingjiangyuan (靈江源), under forest, alt. 600 m, 30 Oct. 2014, Z. L. Chen (陳子林) s.n. (HTC), Tianwang (田王), Pingtou (平頭), in grasses, alt. 700 m, 8 Nov. 1988, L. Hong (洪林) 2644 (HHBG); Taishun (泰順), Sankui (三魁), 25 Jun. 1962, on slope, Zhejiang Bot. Res. Exped. (浙江植物資源普查隊) 8344 (NAS); Xinchang (新昌), Xiaojiang Forestry Farm (小將林場), by stream under forest, alt. 520 m, 6 Oct. 2011, G. Y. Li & Z. H. Chen (李根有和陳征海) XC20111002 (HTC); Wencheng (文成), Tonglingshan (銅鈴山), Houwanggu (猴王谷), 2 Nov. 2013, Z. H. Chen (陳征海) WCT-001 (HTC), WCT-002 (ZM), WCT-003 (ZM).

        A: 植株下部Lower part of plant; B: 植株上部Upper part of plant; C: 外層總苞片Outer phyllary; D: 中間總苞片Middle phyllary; E: 內(nèi)層總苞片Inner phyllary; F: 小花Floret; G: 瘦果Achene.

        本種與Cirsiumyezoense(Maxim.) Makino最接近,區(qū)別主要在于本種總苞片5或6層,外層總苞片較內(nèi)層總苞片短,葉片較小,長15~32 cm,寬6~15 cm,上面疏被長柔毛,下面疏被短柔毛。而C.yezoense的總苞片9或10層,外層總苞片與內(nèi)層總苞片近等長,葉片長30~65 cm,寬10~30 cm,近無毛。

        在中國產(chǎn)的薊屬植物中,浙江垂頭薊略接近薊(C.japonicumFisch. ex DC.)和野薊(C.maackiiMaxim.)。但薊的頭狀花序下垂直立,莖中下部密被多節(jié)柔毛,葉片羽狀深裂至近全裂,兩面同色為綠色,下面密被多節(jié)柔毛,外層和中層總苞片卵狀三角形至長三角形,常春季開花;野薊頭狀花序下垂直立,葉片下面密被柔毛,總苞鐘形,春季開花。

        沼生垂頭薊 新種(圖3,圖4)

        CirsiumpaludigenumY. F. Lu, Z. H. Chen et X. F. Jin, sp. nov. (Fig. 3, Fig. 4)

        Species novaC.tashiroiKitam. etC.sieboldiiMiq. affinis est, ab illa involucri phyllis 5- vel 6-seriatis, apice erectis, extus dense gladulosis minutis, caulibus a medio ad apicem sparse villosis, foliis basalibus lanceolatis, elliptico-lanceolatis vel ellipticis, pinnatifidis vel non divisis recedit; ab hac involucris campanulatis, 2.0-3.5 cm diameter, phyllis 5- vel 6-seriatis, foliis basalibus lanceolatis, elliptico-lanceolatis vel ellipticis, pinnatifidis vel non divisis differt.

        Type: China. Zhejiang (浙江), Wencheng (文成), Jinzhu Forestry Farm (金珠林場), E120°01′36.01″, N27°52′37.05″, in wetland, alt. 1 030 m, 7 Sep. 2018,Z. H. Chen et al. (陳征海等) WC2018090707 (holotype, ZM; isotypes, HTC, PE).

        A: 植株下部Lower part of plant; B: 植株上部Upper part of plant; C: 頭狀花序Capitulum; D: 外層總苞片Outer phyllary; E: 中間總苞片Middle phyllary; F: 內(nèi)層總苞片Inner phyllary; G: 小花Floret; H: 瘦果Achene.

        Perennial herbs. Roots tuberous, fusiform, 1.0-1.2 cm in diameter, erect or obliquely ascending. Stems erect, 45-110 cm tall, slightly ribbed, simplex, rarely branched on upper part, nearly glabrous or sparsely to densely white villose under capitula. Basal leaves rosulate; blade lanceolate, elliptic-lanceolate or elliptic, 10-30 cm long, 3-10 cm wide, adaxially dark green, glabrous, abaxially pale green or gray-green, glabrous, pinnatifid or undivided, base narrowed into a long winged petiole; lateral lobes 4-6 pairs, lanceolate, ovate-lanceolate, triangular or long-triangular, margin unequal teeth with an apical spinule 3.0-5.0 mm long; terminal lobes lanceolate or ovate-lanceolate, margin unequal teeth with an apical spinule 3.0-5.0 mm long. Cauline leaves smaller than basal leaves; blade lanceolate or elliptic-lanceolate, 6.0-15.0 cm long, 0.7-4.5 cm wide, adaxially dark green, glabrous, abaxially pale green or gray-green, glabrous, pinnatilobate to pinnatipartite, base auriculate. Capitula 2-4, racemose, rarely solitary, nodding. Involucre campanulate, 2.0-3.5 cm in diameter. Phyllaries in 5 or 6 rows, erect, outer ones shorter than inner ones; outer phyllaries lanceolate, ovate-lanceolate or long-ovate, 4.0-6.0 mm long, 1.0-2.0 mm wide, upper margin long-ciliate, with densely minute glands on outside surfaces, apex with a ca. 1.0 mm long spinule; middle phyllaries ovate-lanceolate or lanceolate, 9.0-15.0 mm long, 2.0-2.5 mm wide, upper margin long-ciliate, with densely minute glands on outside surfaces, apex with a ca. 1.0 mm long spinule; inner phyllaries linear-lanceolate, 17.0-19.0 mm long, ca. 1.5 mm wide, upper margin ciliate, with densely minute glands on outside surfaces. Achenes slightly compressed, long-obovoid, brown, ca. 5.0 mm long, 2.0-2.5 mm wide, apex obliquely truncate. Florets bisexual; corolla purplish-pink or purple, 19.0-22.0 mm long, limb 10.0-12.0 mm long, 5-lobed, tube 9.0-10.0 mm long. Pappus pale brown, base connate; bristles pinnate, 12.0-15.0 mm long.

        多年生草本。塊根紡錘形,直徑1.0~1.2 cm,直或斜伸。莖直立,高45~110 cm,微具棱,不分枝,極少上部分枝,近無毛,或疏被白色長柔毛,至頭狀花序下密被白色長柔毛?;~蓮座狀;葉片披針形、橢圓狀披針形或橢圓形,長10~30 cm,寬3~10 cm,上面深綠色,下面淡綠色或灰綠色,兩面無毛,羽狀中裂或不裂,基部漸狹成具翼長柄;分裂者側裂片4~6對,披針形、卵狀披針形、三角形或長三角形,邊緣疏具大小不等的鋸齒,齒端具針刺,針刺長3.0~5.0 mm;頂裂片披針形或卵狀披針形,邊緣疏具大小不等的鋸齒,齒端具針刺,針刺長3.0~5.0 mm。莖生葉較基生葉?。蝗~片披針形或橢圓狀披針形,長6.0~15.0 cm,寬0.7~4.5 cm,上面深綠色,下面淡綠色或灰綠色,兩面無毛,羽狀淺裂至深裂,基部抱莖。頭狀花序2~4個排列成總狀,稀單一頂生,下垂??偘娦?,直徑2.0~3.5 cm??偘?或6層,直立,外層短而向內(nèi)漸變長;外層總苞片披針形、卵狀披針形或長卵形,長4.0~6.0 mm,寬1.0~2.0 mm,上部邊緣具長睫毛,背面密被細腺毛,頂端具長約1.0 mm的針刺;中層總苞片卵狀披針形或披針形,長9.0~15.0 mm,寬2.0~2.5 mm,上部邊緣具長睫毛,背面密被細腺毛,頂端具長約1.0 mm的針刺;內(nèi)層總苞片條狀披針形,長17.0~19.0 mm,寬約1.5 mm,上部邊緣具睫毛,背面密被細腺毛。瘦果稍壓扁,倒長卵形,褐色,長約5.0 mm,寬2.0~2.5 mm,頂端斜截。小花兩性;花冠粉紫色或紫色,長19.0~22.0 cm,檐部長10.0~12.0 cm,5裂,細管部長9.0~10.0 mm。冠毛淺褐色,基部聯(lián)合成環(huán);冠毛剛毛羽毛狀,長12.0~15.0 mm。

        其他標本:China. Zhejiang (浙江), Wencheng (文成), Jinzhu Forestry Farm (金珠林場), in wetland, alt. 1 030 m, 7 Sep. 2018, Z. H. Chen et al. (陳征海等) WC2018090709 (HTC, ZM).

        本種接近CirsiumtashiroiKitam.和C.sieboldiiMiq.,與前者的區(qū)別為:本種總苞片5或6層,先端直立,莖中上部疏被白色長柔毛,基生葉披針形、橢圓狀披針形或橢圓形,羽狀中裂或不裂,而C.tashiroi的總苞片8或9層,先端外展,莖被褐色多節(jié)柔毛,基生葉狹倒卵形或狹橢圓形,羽狀深裂至全裂,裂片8~10對;與后者的區(qū)別為:本種總苞鐘形,直徑2.0~3.5 cm,總苞片5或6層,基生葉披針形、橢圓狀披針形或橢圓形,羽狀中裂或不裂,而C.sieboldii的總苞鐘形至筒形,直徑1.1~1.9 cm,總苞片8~10層,基生葉狹倒卵形,羽狀中裂。

        據(jù)目前采集的標本來看,浙江垂頭薊在浙江西北部、中部、東部和南部均有分布,沼生垂頭薊僅分布于浙江南部。

        經(jīng)標本查閱和鑒定,浙江現(xiàn)有薊屬植物9種,分類檢索表如下:

        浙江薊屬植物的分類檢索表

        致謝:東京大學綜合研究博物館Hiroshi Ikeda博士、東京大學小石川植物園Shuichi Nemoto博士、中國科學院植物研究所標本館于勝祥博士、浙江大學植物標本館鄭小明先生、浙江自然博物館徐躍良先生和杭州植物園標本館高亞紅先生為標本查閱提供方便,在此一并表示感謝!

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