- 更多网络例句与孢子囊形相关的网络例句 [注:此内容来源于网络,仅供参考]
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According to the comparative research on Guangnania, the diagnosis of the zosterophytes is expanded. It is suggested that their sporangia have the differentiation in the shape (reniform, rounded/globose to vertically elongate), dehiscence and valves (biconvex or concave/convex).
根据Guangnania的研究和对比,对工蕨类植物的特征进行了扩展,认为孢子囊存在形状(肾形—圆形/球形—纵向伸长)、开裂方式和两瓣的分异。2。
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Beautiful spreading fern of eastern North America and eastern Asia naturalized in western Europe; pinnately divided fronds show a slight tendency to fold when touched; pinnules enclose groups of sori in beadlike lobes.
北美东部和亚洲西部一种广泛分布的美丽的蕨类,并移植欧洲西部;当受到外界刺激时羽状半裂复叶略微合拢;二回羽叶包裹珠形叶片的孢子囊群。
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Leaves tufted; stipes 15-30 cm long, densely scaly at base, glabrous above; sterile lamina about 60 cm long and 20 cm wide, simply pinnate; pinnae numerous, alternate or subopposite, linear-lanceolate, the largest about 12 cm long and 1 cm wide, base cordate, apex acuminate, margin finely toothed; veins close, forking once or twice and forming areoles near the midrib; fertile lamina similar to sterile ones, but somewhat reduced, about 8 cm long and 0.4 cm wide, lower surface almost entirely covered with sporangia.
叶簇生;叶柄长15-30厘米,基部密被鳞片,向上近光滑;不育叶片长约60厘米,宽20厘米,一回羽状;羽片多数,互生或近对生,线状披针形,最长者长达12厘米,宽约1厘米,顶端长渐尖,基部心形,边缘有细密锯齿;叶脉1-2次分叉,近中脉形成网眼;能育叶与不育叶相似,但较小,长约8厘米,宽约0.4厘米,下部满布孢子囊。
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The main characters of this category are: 1 It possesses clear main axes and lateral branches/sporangial stalks; 2 Sporangia terminate the lateral branches or long stalks; 3 With the distinct dehiscing mechanism, the sporangia have the variation in shape, i. e. reniform, rounded or vertically elongate; 4 Primary xylem is of centrarch maturation; 5 Conducting tracheid is G-type.
该类群包括Hsüa,Renalia,Nothia,Sartilmania和Huia,其主要特征为:1)具有明显的主茎轴及侧出的分枝系/孢子囊柄;2)孢子囊顶生于侧枝上或侧生的长柄上;3)孢子囊性状存在变异,为肾形、圆形或纵向伸长,具明显的开裂机制;4)初生木质部发生顺序为心始式;5)G-型输水管胞。
- 更多网络解释与孢子囊形相关的网络解释 [注:此内容来源于网络,仅供参考]
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Cycas revoluta:苏铁
1.肾蕨 (Nephrolepis cordifolia) 骨碎补科. 多年生附生或陆生蕨类草本,羽叶丛生,孢子囊群位于边缘与中脉中间,囊群盖肾形. 盆栽观赏,可供药用. 2.苏铁 (Cycas revoluta) 苏铁科. 常绿棕榈状植物,不分枝,叶丛生于茎顶,大形羽状复叶,小叶线形,茎富含淀粉. 名贵园林观赏植物.
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glass dimmer:玻璃减光器
homosporangium 同形孢子囊 | glass dimmer 玻璃减光器 | breakhead 船头用的破冰装置
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geodesic parallel:测地平行线
camenthol 樟脑 | geodesic parallel 测地平行线 | homosporangium 同形孢子囊
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heterospory:孢子异型
孢子同型(homospory)或孢子异型(heterospory). 现仅有石松目和卷柏目两目. 叶为大叶型. 孢子囊着生于叶缘或叶背,汇集成各种孢子囊群堆,有或无囊群盖(indusium). 孢子同型. 配子体常为心脏形,生殖器官生于腹面. 真蕨是现今最繁茂的蕨类植物,
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indusium:囊群盖
孢子囊著生于叶缘或叶背,汇集成各种孢子囊群堆,有或无囊群盖(indusium). 孢子同型. 蓜子体常为心脏形,生殖噐官生于腹面. 真蕨是现今蕞繁茂啲蕨类植粅,约10000种苡上,我国有40萪2500种. 可分为厚囊蕨亚纲(Eusporangiatae)啝薄囊蕨亚纲(Leptosporangiatae)两个亚纲.
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peridium:包被
直径数厘米,能借助体形的改变在阴湿处的腐木或枯叶上缓慢爬行,并能吞食固体食物. 在繁殖时,变形体爬到干燥光亮的地方,形成很多发状突起,每个突起发育成一个具柄的孢子囊(子实体). 孢子囊通常长筒形,外有包被(peridium)...
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sporocarp:孢子果
孢子果(sporocarp) 某些水生或湿生蕨类植物特有地一种内生孢子囊地结构. 其形态和内生孢子囊的情况因种类而异. 如苹(Marsilea quadrifolia)的孢子果为肾形,着生于叶柄基部,成熟时如坚果状,内生多数孢子囊群,每1个囊群上,
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Albugo:白锈属
仅含白锈属(Albugo)1个属. 为害植物的地上部,产生白色疤状的孢子囊堆,因此通称为白锈病. 腐霉属(Pythium)的特征是丝状、裂瓣状、球状或卵形的孢子囊着生在菌丝上. 孢子囊顶生或间生,无特殊分化的孢囊梗. 腐霉属真菌在霜霉目中是较低等的,
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Marsilea quadrifolia:苹
最佳答案: 孢子果(sporocarp) 某些水生或湿生蕨类植物特有的一种内生孢子囊的结构. 其形态和内生孢子囊的情况因种类而异. 如苹(Marsilea quadrifolia)的孢子果为肾形,着生于叶柄基部,成熟时如坚果状,内生多数孢子囊群,每1个囊群上,同时生有大...
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Psilophyton:裸蕨
茎的解剖构造,具简单的维管束组织和典型的原生中柱,表皮具有角质层和气孔. 孢子囊卵圆形,成对着生于叉枝顶端,由数层细胞组成的厚囊壁,孢子60~100微米,孢壁光滑,均为四分体,同形. 已发现有莱尼蕨(Rhynia)、裸蕨(Psilophyton)等.