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F. bidentis leaf was of isobilateral type, and had thicker epidermis cell wall and cuticle, obvious cryptopores, and highly developed palisade tissue, with typical C4-plant Kranz anatomy. The collenchymas and vascular tissue in stem and the aerenchyma in root were well developed. Secretory structure was found in all vegetative organs. According to the analyses of soil physical and chemical properties and relevant ecological factors, F.
结果表明:黄顶菊叶片表皮具较厚的角质层、下陷气孔,叶片为等面叶、全栅型,叶肉细胞环绕维管束鞘细胞紧密排列,是典型C4植物的Kranz花环结构;茎中厚角组织和维管组织发达,根中还存在通气组织;根、茎、叶中均存在分泌结构。
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Hybrids of carbonate and terrigenous sediments Carbonate with terrigenous sediments are of characteristic from Emsian to Eifelian in stable shallow-sea faciesregion in Longmenshan area, and they can be classified evidently into hybrid Ⅰ and hybrid Ⅱ(Jingbaoshi-type). Type Ⅰ produced in mud shelf setting occupied hundreds of tempestite beds in which bottom cast、 hummocky cross bedding sandstones、 coquina were inter-beddded with shales that beared a great deal of verm traces、 bioturbations、 benthic communities dominative of brachiopods. Type Ⅱ in sand-mud-marl shelf was characterized by high-energy foreshore sandbeach facies and shelly bank facies.
碳酸盐与陆源碎屑混合沉积方面对微相、相特征、旋回样式、沉积机理研究表明,龙门山地区泥盆纪稳定浅海相区Emsian期和Eifelian期混合沉积十分发育,颇具特色,明显可以划分为两种类型:混积Ⅰ型,泥质陆棚背景下发育风暴沉积组构,幕式风暴期产生具丘状层理、底流冲刷构造的钙质砂岩、介壳岩,平息期则形成具大量虫管和生物扰动的深灰色、黄绿色页岩及海百合茎灰岩,腕足动物等大量繁盛;混积Ⅱ型,砂泥灰质陆棚背景下以发育高能前滨沙滩及生物介屑滩为特色,近滨至陆棚的砂泥灰互为混合,三者比例接近,肉眼难以区别确切岩石类型。
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Basal and cauline leaves 2 or 3; leaf sheath auricles well developed; leaf blade terete, 2--27 cm, on cauline leaves tubular and distinctly septate.
基生和茎生叶2或3;叶鞘的叶耳发育良好;圆柱状的叶片,2-27厘米,茎生叶上管状和清楚具隔的。
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Thorn A stiff sharply pointed woody process that may be found on the stems of vascular plants.
棘的刺:维管植物茎杆上可见的一种坚硬的具锋利尖端的木质结构。
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The flower has calorie of power, sepal egg shape wraps around needle form, petaline corydalis is lubricious, have canaliculus state, straight or go up a bit curved; Florescence 4 ~ May, purple floret, xie Rengqing of after autumn bine is green be like first, the companion other the flower has acicular small fruit, till at the beginning of the winter, ground upside divides ability wither, because this is wonderful ground by the plant, but sheet is planted the predestined relationship issues a Zhi Yulin or on the meadow of exposed to the sun, also but with other herb, wait like bison grass, dandelion mix kind, form level ground of beautiful compose flowers and plants.
紫花地丁叶基生,狭披针形或卵状披针形,边缘具圆齿,叶柄具狭翅,托叶钻状三角形,有睫毛。花有卡柄,萼片卵状披针形,花瓣紫堇色,具细管状,直或稍上弯;花期4~5月,紫色小花,秋后茎叶仍青绿如初,花旁伴有针状小果,直至冬初,地上部分才枯萎,因此是极好的地被植物,可单种成片植于林缘下或向阳的草地上,也可与其他草本植物,如野牛草。蒲公英等混种,形成漂亮的缀花草坪。
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Rhizomes neither swollen nor tuberlike; spathes 1-flowered; plants stemless or with flowering stems to 20 cm; flowers to 5 cm in diam.
既不膨胀的根状茎也非管状;佛焰苞1花;植株无茎的或具花茎到20厘米;花给5厘米直径 19
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Stems and leaves bristly; corolla limb 2-3 mm wide, tube 1-1.8 mm; abaxial aperture of nutlets triangular, 0.9-1.5 mm.
茎和叶具刚毛;花冠肢解2-3毫米宽,成管状毫米;三角形的小坚果,0.9-1.5毫米的背面孔 6
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hydranth:水螅体
螅茎上分出2种个体--水螅体(hydranth)与生殖体(gonangium). 整个群体外面,包围着由外胚层分泌的一层透明的角质膜,称围鞘(perisarc),具保护和支持的功能. 水螅体主要管营养,其构造与水螅基本相同,有口及触手,触手是实心的,
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sclereid:石细胞
石细胞(sclereid) 概念 石细胞是维管植物(蕨类植物、裸子植物和被子植物)体中的一种厚壁组织细胞. 石细胞有各种形状,细胞壁具次生加厚,木质化,壁上具单纹孔,主要起机械支持和保护作用. 分布 通常在植物的根、茎、叶、果实或种子中,
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telome:顶枝
顶枝学说认为,原始维管植物中,无叶的植物体(茎轴)是由顶枝(telome)构成的;顶枝是二叉分枝的轴的顶端部分,具有孢子囊或不具孢子囊,它的形体与莱尼蕨属相似,若干顶枝共同联合组成顶枝束,顶枝束的基部也有二叉分枝的部分,
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telome theory:顶枝学说
20世纪初,裸蕨植物的化石陆续发现,顶枝学说(Telome Theory)逐步得到充实,并且得到较为普遍的承认. 顶枝学说认为,原始维管植物中,无叶的植物体(茎轴)是由顶枝(telome)构成的;顶枝是二叉分枝的轴的顶端部分,具有孢子囊或不具孢子囊,
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aedeagus:阳茎
阳具包括一个阳茎(aedeagus)和1对位于基部两侧的阳茎侧叶 (parameres). 阳茎多是单一的骨化管状构造,是有翅昆虫进行交配时插入雌体的器官. 射精管即开口于阳茎端的生殖孔. 少数无翅亚纲昆虫无阳茎,而原尾目、蚌诺目和革翅目昆虫,
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calamiferous:具管茎的
calamene | 卡拉烯 菖蒲萜烯 | calamiferous | 具管茎的 | calamiform | 似芦苇的, 似羽毛的
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calamiform:似芦苇的, 似羽毛的
calamiferous | 具管茎的 | calamiform | 似芦苇的, 似羽毛的 | calamine cream | 锌膏
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CEPHIDAE:茎蜂科
膜翅目茎蜂科(Cephidae)昆虫的通称.体细长,圆筒形或侧扁,多暗色或黑色,或具黄色斑纹.触角长,丝状.前胸背板后缘平直.前足胫节端部仅有1距.腹部第1节前端稍有收缩.雌虫产卵管短,但从背面可以