Riodocea (Rubiaceae, Gardenieae), a new genus from the Brazilian Atlantic forest

The genusRiodocea is here described from material collected in the várzea forest of the Rio Doce Valley, northern Espírito Santo.Riodocea is a monotypic genus probably related to the Amazonian endemicKutchubaea. A line drawing shows general morphology and photomicrographs show pollen morphology ofRiodocea pulcherrima. Distribution maps ofRiodocea andKutchubaea are included. The valley of the Rio Doce is here included in the Bahian Hylaea, defined as a subregion of the Brazilian Atlantic forest. The connections between the Amazonian Hylaea and the Bahian Hylaea are discussed.     

中越茜草科栀子族植物拾零

报道了中国茜草科Rubiaceae栀子族tribe Gardcnieae一新记录属和二新记录种：越南茜属Rubovietnamia Tirveng．、长管越南茜R．aristata Tirveng．和中越大果茜Fosbergia pettelotii Merr．ex Tirveng．＆Sastre;以及越南茜草科栀子族的一新记录种,即大围山紫冠茜Rothmannia daweishanensis Y.M．Shui＆WH．Chen。     

Carapichea guianensis: the correct name for Psychotria carapichea (Rubiaceae), with a correction on the authority of P. carapichea, and a new combination in Carapichea

The correct name forPsychotria carapichea isCarapichea guianensis. Also, the authority ofPsychotria carapichea was previously incorrectly cited, because of an oversight of the illegitimacy ofTapogomea carapichea Poir. The complex taxonomic history of this species is analyzed, and the authority of the binomial is correctly cited. In addition,P. ligularis, which was treated as closely related toC. guianensis in previous publications, is transferred toCarapichea and it is now known asCarapichea ligularis.     

Phylogenetic systematics of the monotypic genus Hayataella (Rubiaceae) endemic to Taiwan

Hayataella (Rubiaceae) is a monotypic genus endemic to Taiwan that comprises H. michelloides. In recent years, Hayataella was considered to be synonymous with Ophiorrhiza; however, no specific data have been reported, and the systematic treatment of Hayataella has been unclear. To elucidate the systematic treatment of Hayataella, molecular phylogenetic analyses based on ITS of nrDNA, atpB–rbcL, and trnK/matK of cpDNA were conducted with four Ophiorrhiza species. In the Bayesian and the most parsimonious trees, H. michelloides was included in the Ophiorrhiza clade. The monotypic status of Hayataella is, therefore, not considered appropriate, and the combination Ophiorrhiza michelloides (Masam.) H. S. Lo is supported.     

Redefinition of the neotropical genus Anthopterus (Ericaceae: Vaccinieae), including one new species

The taxonomic history of Anthopterus as it relates to Themistoclesia is briefly reviewed. Anthopterus is redefined to include several species formerly placed in Themistoclesia. Two subgenera are established within Anthopterus. Anthopterus costaricensis Luteyn is described as new, and the new combination Anthopterus pterotus (A. C. Sm.) Luteyn is made. A key to the genus, a list of the species currently accepted, and brief notes on distribution and frequency are provided. Most species of Anthopterus are rare and their habitats are endangered.     

A new species of Remijia (Rubiaceae) from Amazonian Brazil

Remijia hubbardiorum B. M. Boom, endemic to white sandcampinas orerra firme forest in the Rio Uatumã region in the State of Amazonas of north central Brazil, is described and illustrated, and its morphological differentiation with respect toR. asperula Standley is discussed.     

亚洲茜草科粗叶木属及其相关属植物花粉形态研究

利用光学显微镜和扫描电镜研究了茜草科粗叶木属Lasianthus 16种2亚种、1变种及相关的5属5种的花粉形态。粗叶木属的花粉属于广孢型, 单粒。一般中等大小, 绝大多数为圆球形, 少数为近长球形或长球形。花粉形态特征, 特别是在萌发孔和外壁纹饰上表现出多样化。根据孔沟的数目或是否具有内孔, 可以将萌发孔分为(3-)4-(-5)孔沟和3孔。在所观察的这些种中, 萌发孔以3-4孔沟为主要类型, 比例为62.4%。外壁纹饰可分为细网状、粗网状和穴状。有部分种的花粉极面有穴状纹饰, 其余均为网状纹饰。网眼一般椭圆形、近圆形、三角形或者不规则形。少数外壁纹饰网脊上有颗粒状雕纹或模糊的颗粒, 网脊轮廓线呈波浪形, 一般凸出且平滑。大部分种的花粉具有沟膜, 沟膜上具有瘤状突起或小颗粒状, 沟边缘一般较平滑, 或粗糙, 有的种具有沟桥。     

Peratanthe is a synonym of Nertera (Rubiaceae, Anthospermeae)

The two species ofPeratanthe, a genus allegedly endemic to the greater Antilles, are shown to be entirely within the variation range ofNertera granadensis (L.f.) Druce var.granadensis, a widespread, often weedy species.     

瑞丽茜(茜草科)的再确认

瑞丽茜Fosbergia shweliensis (Anth.) Tirveng. &; Sastre的基名为Randia shweliensis Anth., 是高黎贡山地区的特有种。根据作者1998-2004年从云南西部高黎贡山所采集的标本, 本文补充了瑞丽茜果实的形态描述, 更正了关于本种原描述的若干错误, 报道了本种的生活习性、生境和分布情况。     

Pollen morphology in the genus Coffea (Rubiaceae) and its taxonomic significance

The pollen morphology of 38 representative species and varieties within the genus Coffea L. is described. Eight pollen types, placed in two major groups, have been identified on the basis of the number of colpi, colpus characteristics, exine morphology and pollen size. Differences in pollen structures of the species studied do not correspond to present taxonomic groupings, but support a current proposal to place some of the species in the genus Paracoffea Leroy. Among the four sections in the genus, the section Eucoffea contains a high degree of pollen polymorphism.     

Mitracarpus longicalyx (Rubiaceae, Spermacoceae), a new species from northeastern Brazil

Mitracarpus longicalyx is here described and illustrated from sandy areas of the caatingas of northeastern Brazil. The new species is similar toM. hirtus andM. megapotamicus.     

Names, types, and distribution of neotropical species of Erythroxylum (Erythroxylaceae)

A list is provided of all 358 taxa ofErythroxylum described from the Neotropics through the year 2000, including type specimen citations, probable synonymy, geographic distribution, and designation of 41 new lectotypes and one new neotype. The list includes 187 accepted species, eight accepted varieties, 27 infraspecific names of uncertain status, and 136 synonyms. A searchable specimen database and type image archive may be accessed at www.fieldmuseum.org/research_collections/database.htm. T. Plowman, deceased 7 January 1989.     

Notes on Galianthe (Spermacoceae, Rubiaceae) in the Bolivian flora

Four new species ofGalianthe (G. boliviana, G. chiquitosana, G. sudyungesis, andG. kempffiana) for Bolivia are described and illustrated.Galianthe kempffiana is also known from Brazil.Galianthe laxa andG. bisepala are reported for the first time for Bolivia.     

Review of the neotropical endemics Burmeistera, Centropogon, and Siphocampylus (Campanulaceae: Lobelioideae), with description of 18 new species and a new section

Burmeistera, Centropogon, and Siphocampylus together comprise more than 500 species endemic to the Neotropics, Current knowledge of these genera is unsatisfactory, with much diversity yet to be described. Over the past seven years, one out of every 28 specimens received for identification has represented a new species, many characterized by unique or unusual character states. Siphocampylus smilax (Bolivia) is unique in the genus in its parallelodromous leaf venation and extra-floral nectaries. Centropogon dianae (Peru) cannot be accommodated in any recognized infrageneric taxon, and a new section, Centropogon sect. Niveopsis, is proposed for it. The flowers of C. steinii (Ecuador) are the smallest known in the genus, while C. connatilobatus (Venezuela) is the first species to combine arbusculiform pubescence and connate calyx lobes. Burmeistera venezuelensis is only the second species of the genus known to occur in Venezuela and the first to be endemic; similarly, Centropogon wilburii is only the third species of Centropogon known from Mexico and the first to be endemic to that country. Additional novelties are also described.     

Novelties in spermacoceae (Rubiaceae) from Bolivia and Paraguay

One new Bolivian species (Borreria pazensis) and three new varieties (Borreria densiflora var.minima, Richardia, scabra var.chacoensis andStaelia virgata var.killeenii) are described and illustrated. The genusDiodella, with three species (D. apiculata comb. nov., D. radula comb. nov., andD. teres), is reported for the first time.Borreria limae, B. wunschmannii, B. scabiosoides var.scabiosoides, andB. scabiosoides var.anderssonii are also reported as new to Bolivia.