中国野豌豆属的分类研究

本文报道了国产野豌豆属43种,4变种及6变型,其中包括4个新种(多叶野豌豆,三尖野豌豆,武山野豌豆,长齿野豌豆);一个新变种(三叶歪头菜)及一个新等级(千山野豌豆)。     

Two New Species of Dendrocalamus Nees (Bambusoideae) from China

Two new species of bamboo, Dendrocalamus ovatus Xia et Chia and D. textilis Xia, Chia et C. Y. Xia, collected from southwestern China aredescribed.     

香港樟科一新种—腺叶琼楠

报道樟科琼楠属-新种,即腺叶琼楠Beilschmiedia glandulosa N．H．Xia,F．N．Wei ＆ Y．F．Deng。腺叶琼楠与美脉琼楠B．delicata S．Lee ＆ Y．T．Wei和网脉琼楠B．uangii Men∏．近似,但叶面具腺状小突起,花序短和果实表面光滑,不具小瘤点而容易区别。     

国产樟科一新种—香港油果樟

报道樟科油果樟属一新种,香港油果樟Syndielis hongkongensis N．H．Xia,Y．F．Deng ＆ K．L．Yip。它以小枝红褐色,花被片6,能育雄蕊6,无腺体,而明显区别于近缘种油果樟S.chinensis Allen。     

香港桃金娘科一新种—凹脉赤楠

对香港桃金娘科蒲桃属一新种,凹脉赤楠Syzygium impressum N．H．Xia,Y．F．Deng ＆ K．L．Yip作了描述,它与赤楠S．buxifolium Hook． ＆ Am．近似,区别在于叶倒卵形,中脉下凹,果直径约4mm。     

靖西长喙木兰，广西木兰科一新种（英文）

描述了产自广西木兰科一新种：靖西长喙木兰(Lirianthe jingxiensis Y. H. Tong&N. H. Xia)。本种形态上与绢毛木兰[L. albosericea(Chun&C. H. Tsoong)N. H. Xia&C. Y. Wu]接近,但区别在于该种植株较矮,幼枝、叶柄和幼叶被黄棕色绢毛,叶柄较宽,叶片较宽,倒卵形或倒卵状椭圆形,先端钝或短渐尖,花被片较大,心皮数目较多,被黄棕色绢毛。     

中国(竹思)簩竹属(Schizostachyum Nees)的研究及其它

对国产(竹思)(竹劳)竹属(Schizostachyum Nees)进行了系统整理。对属的范围进行了修订,认为本属应包括乔草竹属(Dendrochloa Parkinson),薄竹属(Leptocanna Chia et H.L.Fung),长穗竹属(Teinostachyum Munro)和李海竹属(Neohouzeaua A.Camus),并首次建立了本属的属下分类系统。此外,对二种竹子起了新名:甲竹(Bambusa austro-sinensis Xia)和毛环单竹(B.yunnanensis Xia);作了4个新组合,即Schizostachyum coradatum(Wen et Dai)Xia, S.dumetorum(Hance)Munro var.xinwuense(Wen et J. Y Chin)Xia, Bambusa glaucescens glaucescens(Willd)Sieb. ex Munro var.annulata(W.T.Lin et Z.J.Feng)Xia和B.glaucescens (Willd)Sieb.ex Munro var.pubivagina(W.T.Lin et Z.J.Feng)Xia.     

Dendrocalamus menglongensis sp. nov. (Poaceae–Bambusoideae) from Yunnan,China

A new species Dendrocalamus menglongensis Hsueh & K. L. Wang ex N. H. Xia, R. S. Lin &Y. B. Guo is described and illustrated from Xishuangbanna, Yunnan, China. It differs from D. giganteus by e.g. shorter internodes, 4–5 florets, a perfect terminal floret and persistent culm sheaths. A key to the new species and the other 7 species of Dendrocalamus known from Xishuangbanna is provided.     

A New Species of Gigantochloa Kurz ex Munro (Poaceae: Bambusoideae) from Yunnan Province,China

A new species of Gigantochloa Kurz ex Munro, Gigantochloa callosa NH. Xia, Y. Zeng & RS. Lin was described and illustrated. It is differed from Gparvifolia (Brandis ex Gamble) TQ. Nguyen by its smaller size; culm sheath proper covered with both dark brown and silvery appressed hairs abaxially; ligules 2-3mm tall, entire; leaf ligules 2-3mm tall, entire; one side of the apex of leaf sheath developed into a 2-3mm long, thin, scale like callus.     

中国云南巨竹属一新种

描述了中国巨竹属一新种——小巨竹GigantochloacallosaN．H．Xia,Y．Zeng＆R．S．Lin并绘制了图版。该种与Gigantochloaparvifolia（Brandisex Gamble）T．Q．Nguyen相似,区别在于此种各部分较G．parvifolia较小;箨鞘背面贴生深褐色与银灰色短硬毛,箨舌高2～3mm,全缘;叶舌高2～3mm,全缘;叶鞘背面与叶柄连接处一侧有一高2～3mm的半圆形薄鳞片状突起。     

中国云南巨竹属一新种

描述了中国巨竹属一新种——小巨竹Gigantochloa callosa NH. Xia, Y. Zeng & RS. Lin并绘制了图版。该种与Gigantochloa parvifolia (Brandis ex Gamble) TQ. Nguyen相似,区别在于此种各部分较Gparvifolia较小;箨鞘背面贴生深褐色与银灰色短硬毛,箨舌高2~3mm,全缘;叶舌高2~3mm,全缘;叶鞘背面与叶柄连接处一侧有一高2~3mm的半圆形薄鳞片状突起。     

Studies on some new red algae from China (Ⅰ)

The present paper reports four new species of Chinese marine red algae belonging to Ahnfeltiales and Gigartinales. They are Ahnfeltia yinggehaiensis Xia et Zhang, Ahnfeltiopsis guangdongensis Xia et Zhang, Ahnfeltiopsis hainanensis Xia et Zhang, Ahnfeltiopsis masudai Xia et Zhang. Key words Ahnfeltia;A．yinggehaiensis;Ahnfeltiopsis;A．guangdongensis;A．hainanensis;A．masudai;Hainan;Guangdong;New species     

A New Combination of the genus Zingiber—Z. ellipticum (S. Q. Tong et Y. M. Xia) Q. G. Wu et T. L. Wu and the Systematic Evidence

The distinct characters of the flower of Plagiostachys elliptica, S. Q. Tong et Y. M. Xia are: (1) each flower possesses two large lateral staminodes, which are adnate to the lip (labellum) to form a deeply 3 lobed labellum;(2) connective extends into a curved, beak like conspicuous appendage (anther crest) and envelops the upper part of style. In the Zingiberaceae, these characters are only present in the genus Zingiber.Furthermore, in Sect. Pleuranthesis of Zingiber the spike also arises from side of the leafy stem. Pollen grains of the species are with cerebelloid sculpture,that is the character of the Subtype Cerebelloid areolate in Zingiberaceae, and are similar to those sculpture and morphology of Sect. Zingiber of the genus Zingiber and differ from those of Plagiostachys, of which pollen grains are with longer spines and belong to the Group long spinate of Subtype spinate. The endotesta of seeds in this species is composed of one layer of brick shaped parenchymatous cells, which is similar to the parenchymatous endotesta of Zingiber seeds and obviously differs from that of seeds of Plagiostachys, which consists of one layer of sclereids. Therefore,Plagiostachys elliptica S. Q. Tong et Y. M. Xia should be transferred from Plagiostachys to the genus Zingiber, and a new combination——Zingiber ellipticum (S. Q. Tong et Y. M. Xia) Q. G. Wu et T. L. Wu is made in this paper.     

云南姜科植物的增补与修订

据中国植物志(1981),云南有姜科植物17属, 78种,9变种。其后多篇文章论及一些种属,标本也有较多的增加。本文根据现有的标本与文献资料对云南姜科植物作增补与修订,共涉及16属15种,包括1个新种,7个修定后的异名。云南共计有姜科植物18属,148种和11变种。     

Dendrocalamus parvigemma sp. nov. (Gramineae: Bambusoideae) from Vietnam

A new species of Dendrocalamus Nees from Vietnam, D. parvigemma N. H. Xia, V. T. Nguyen et V. L. Le, is described and illustrated. The new species is morphologically similar to D. latiflorus Munro and D. yunnanicus Hsueh & Li, from which it differs by having a very small and nearly circular culm bud, dense, 1.4–1.6 cm long, palea with bristles and apex split in 2, narrowly lanceolate ovary, and sheath ligule 5 mm heigh and irregularly serrulate.     

贵州竹子新报道

发表了产于贵州的玉山竹属2新种,即窄叶玉山竹和细弱玉山竹。赤竹（Sasa longiligula McClure）、单枝竹（Bonia saxatilis(Chia, H. L. Fung et Y. L. Yang) N. H. Xia）为贵州新分布竹种,并对其中赤竹的花做了补充描述。     

Pseudostellaria tianmushanensis sp. nov. (Caryophyllaceae) from Zhejiang,China

Pseudostellaria tianmushanensis G. H. Xia & G. Y. Li, collected from the Tianmu Mountains Nature Reserve in northwestern Zhejiang, China, is described and illustrated. This new species is similar to P. rupestris Pax., but differs by having a string of fusiform or ovoid‐globose tubers, leaves that are narrow elliptic‐lanceolate, glabrous, with cuneate base with scattered multi‐nodulate hairs, papillate margins and basipetalous variation in floral morphology. Moreover, the seed tubercle ornamentation also supports the recognition of the new species. A key to the species of Pseudostellaria in Zhejiang province is provided.     

香港桦木科一新种——香港鹅耳枥(英文)

报道了桦木科(Betulaceae)鹅耳枥属(Carpinus L.)一新种——香港鹅耳枥(C.insularis N.H.Xia,K.S.PangY.H.Tong)。香港鹅耳枥与太鲁阁鹅耳枥(C.hebestroma Yamamoto)及多脉鹅耳枥(C.polyneura Franch.)相似,但习性灌木状,叶具13~16对侧脉,先端锐尖,边缘锯齿的芒尖较短,果苞宽半卵形或半卵形,长8~14 mm,小坚果顶端密被长柔毛且疏具树脂状腺体,与后两者易于区别。     

Taxonomic studies on Zingiber (Zingiberaceae) in China VI: Z. leucochilum,a new species with running rhizome from Sichuan

Zingiber leucochilum L.Bai, ?korni?k. & N.H.Xia (Zingibereae, Zingiberaceae), a new species from southeastern Sichuan, China, is described and illustrated with a colour plate. Notes on ecology, distribution and a preliminary IUCN conservation assessment are also provided. The new species is assigned to Z . sect. Cryptanthium Horan. and compared to five morphologically similar species from China which share the characteristic well‐elongated and running rhizome, namely, Z. emeiense Z.Y.Zhu, Z. leptorrhizum D.Fang, Z. pauciflorum L.Bai, ?korni?k., D.Z.Li & N.H.Xia, Z. smilesianum Craib and Z. yunnanense S.Q.Tong & X.Z.Liu. A key to the above six species is provided and their distributions are mapped.     

浙江天目地黄2新变型

描述了产于浙江临安的天目地黄2个新变型--白花天目地黄(Rehmannia chingii Li f.albi flora G.Y.Liet D.D.Ma)和紫斑白花天日地黄(R.chingii Li f.purpureo-punctata G.Y.Li et G.H.Xia),它们与原变型的主要区别为花冠白色;前者喉部淡黄色,后者喉部具紫色斑点.