Synopsis of North American Amaranthaceæ. V. (Concluded)

Synopsis of North American Amaranthaceæ. V. (Concluded)
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北美苋科V.概要(完)

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通讯作者:
W. L. Bray
W. L. Bray
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作者:
E. B. Uline;W. L. Bray

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[医] Veg.单个发生率I4。1788.菲洛克斯河Br.产品芙洛11月中旬1:4i6. 1810.特罗姆斯多菲亚市场布拉斯.两点四十i826。雌雄同株,杂性雌雄异株或雌雄异株的草本,灌木或灌木状乔木,后者达到6米的高度,具对生的通常有叶柄的叶,干膜质的带白色的3苞片的花密集成簇或穗状花序在一个分枝圆锥花序中:5个萼片的花萼,在0和$花中通常几乎隐藏在从花基部伸出的长绒毛中:雄蕊5;花丝合生成一浅杯状在基部和在大多数种里着生退化雄蕊:胞果球状,卵形或壶状具短花柱和两个纤细的通常丝状的柱头分枝。在这份Ir-esine属的概要中,我们遵循了前面所述的计划,包括了在美国的标本馆中发现的墨西哥和中美洲的物种,因此,当我们将在美国发现的类型减少到Iresinewormullaris时。(L.)Moq。和Iresine paniculata(L.)Kuntze和它的两个变种,这里包括了来自墨西哥和中美洲的大约十一个其他相当明确的物种,其中四个我们冒险描述为新的,很清楚,对这些地区的Iresines更彻底的了解可能会告诉我们错误。作为一个感兴趣的问题,我们在这里提请注意一个相当令人惊讶的事实,据报道,洪都拉斯和危地马拉的Iresines实际上是灌木状的树木,在一种情况下是一棵六米高的小树。* 雌雄同体
Li/hophiia Sw. Prod. Veg. Ind. Occ. I4. 1788. Philoxcrzs R. Br. Prodr. Flor. Nov. Hol. 1: 4i6. i8io. Tromsdorfia Mart. Nov. Gen. et Spec. Bras. 2: 40. i826. Hermaphrodite, polygamo-dicecious or dioecious herbs, shrubs or shrubby trees, the latter attaining a height of six meters, with opposite usually petioled leaves, scarious whitish 3-bracted flowers crowded into clusters or spikes in a branching paniculate inflorescence: calyx of five sepals which in 0 and $ flowers are generally almost hidden in long wool which springs from the base of the flower: stamens five; filaments united into a shallow cup at base and bearing staminodia in most species: utricle globular, ovate or urn-shaped with short style and two slender often filiform stigmatic branches. In this synopsis of the genus Ir-esine we have followed the plan stated previously of including such Mexican and Central American.species as were found to be well represented in the herbaria of the United States, so that while we reduce the forms found in the United States to Iresine vermicullaris .(L.) Moq. and Iresine paniculata (L.) Kuntze, with its two varieties, there are here included some eleven other tolerably well defined species from Mexico and Central America, four of which we venture to describe as new, knowing well that a more thorough acquaintance with the Iresines of those regions may show us to be in error. As a matter of interest we would call attention here to the rather surprising fact that from Honduras and Guatemala Iresines are reported which are actually shrubby trees and in one case a small tree six meters in height. * Hermaphrodite.