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Tricholoma may be a paraphyletic genus two. The collections identified as T. caligatum is a mixture. Some parts of them from France are members of T. matsutake, the other parts from North America are closed to T. bakamatsutake and T. fulvocastaneum. Tricholoma robustum and T. focale form a clade which is obviously a sister group of the stirp Subannulate. The stirp Caligata was defined as a group mainly on the basis of the predominant veil. But from the result of molecular systematic analysis, the presence of veil is not a stable character in the matsutake group. Species having symbiosis with conifers and broad leaf tree are all transformed from those whose host specificity is not strict. The phylogenetic tree based on ITS sequences resembled the tree of NJ algorithm based on cladistic coding. In the phylogenetic tree based on morphylogical characters, T. zangii and T. bakamatsutake form a clade, but it is the result of convergent evolution as suggested by molecular analyses. The distribution area of the matsutake group can be divided into six regions: middle and northern Europe region, Mediterranean region, Hengduan Mount.— Southeastern Tibet region, Northeastern China—Japan—Far-east Russia region, the Atlantic—North America region and the Rocky Mountain region. The abundance center of the matsutake group are Hengduan Mount.—Southeastern Tibet region and the Rocky Mountain region. Hengduan Mount.

松口蘑群的分子系统学研究得出的结果有:由于粗壮口蘑和羽衣口蘑明显和亚环族(Tricholoma,section subannulate)的种类是来自同一个谱系,和其它松口蘑群的种不具有最近共同祖先,因此松口蘑群是一个多系群;松口蘑群和口蘑属其他种类的亲缘关系比和蜜环菌属更接近;梭柄松苞菇和松口蘑群的差距明显小于油黄口蘑(T.flavovirens)和棕灰口蘑;口蘑属是一个多系群;鉴定为欧洲口蘑的标本明显不是一个单系群,其中一部分是松口蘑,另一部分和黄褐口蘑及傻松口蘑(T.bakamatsutake)比较接近;划分松口蘑群的标准是菌环的存在,但从分子系统学的结果来看,菌环的存在与否并非是一个很稳定的性状;和针叶树专性共生及和阔叶树专性共生均由寄主专化性不强的种类转化而来;在形态学系统发育树上青冈口蘑和傻松口蘑被聚为一个分枝,分子系统学的研究结果表明,这是趋同进化的结果;用支序方法编码作出的NJ树的结果更接近ITS序列的结果。

Said: cliff ju Related usually use unicuspid type, multi-branched, branches of bright flowers dense varieties of flowers,...

曰: 悬崖菊相关通常选用单瓣型、分枝多、枝条细软、开花繁密的小花品种,。。。

The SEM experiments indicate that the coating crystalline present an ordered arrangement and an arborous appearance. All crystals are larger than that before the addition of organic polymer. The length of some crystal branches are larger than 100 micron. It is supposed that the existence of arborous crystals is due to the incorperation of organic polymer into DCPD coating.

电镜实验表明,电解液中加入有机高聚物后,陶瓷沉积层呈有序排列,晶体呈树枝状结构,膜层中晶体颗粒度增大,有的分枝长达100多微米,磷酸氢钙膜层中出现的树枝状磷酸氢钙晶体是由于有机高聚物掺杂进入磷酸氢钙陶瓷膜层。

Inflorescences lax, often dichotomously branched, axillary, 1- to many-flowered cymes; bracts 2, opposite.

花序疏松,通常分枝,,1到多花的聚伞花序;苞片2,对生。

Peduncle slender, 7-10 cm, 2 or 3 × dichotomously branched with several to many flowers; pedicel slender, 5-6 mm. Flowers 4-merous, ca. 7 mm in diam.; sepals suborbicular, short; petals whitish green or yellow-green, ovate, base cuneate.

花序梗纤细,7-10厘米,2或3次分枝具数花到多花;花梗纤细,5-6毫米花4瓣,直径约7毫米;萼片近圆形,短;花瓣带白色绿色的或黄绿色,卵形,基部楔形。

Lysimachia christinae "Aurea" had the highest value on plant fresh weight, root fresh weight and length of branch under 27% shading, and the largest leaf area appears under shading of 73%.

金叶过路黄在遮光27%条件下,植株鲜重、根重、叶片鲜重及分枝数均最大,而其叶面积在遮光73%时最大;多花筋骨草与射干的植株鲜重在全光照条件下呈最大值。

Ovary superior or semi-inferior, 1-loculed, with 2-9 parietal placentas, rarely incompletely 2-9-celled by placentas protruding deeply into locule; ovules 2 or more on each placenta, orthotropous, anatropous, or hemi-anatropous; styles isomerous with placentas, free or partly to completely united, rarely absent, stigmas small or large, capitate to flattened and branched.

子房上位和半下位,1室,有2-9侧膜胎座,很少不完全的2-9室,胎座凸出深入进子房室;每个胎座内胚珠2或更多,直生,倒生或者半倒生;花柱和胎座同数,离生,或部分到完全合生,很少无花柱,柱头小或者大,头状到扁平或者分枝。

Stamens numerous; anthers elliptic to oblong; filaments linear. Follicles 5--40, sessile, sometimes stipitate, with branching transverse veins, styles distinct or nearly absent; ovules several to many.

花瓣无;雄蕊多;花药椭圆形到长圆形;花丝线形蓇葖果5-40,无梗,有时具柄,具分枝横向脉,花柱离生的或近无;胚珠数枚到多数。

Inflorescences sometimes borne on main branches or trunk, unisexual, capitate, many-flowered.

有时花序生于主要分枝或树干,单性,,多花的。

Inflorescence branching; umbels compound, terminal and lateral; bracts and bracteoles present, entire, membranous; rays unequal; umbellules many-flowered; pedicels unequal.

花序分枝;复伞状花序,顶生和侧生;苞片和小苞片存在,全缘,膜质;伞辐不等长小伞形花序多花的;花梗不相等。

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