New species and combinations in Thelypteris subg. Goniopteris (Thelypteridaceae)

Three new species ofThelypteris are described and illustrated:T. littoralis andT. paranaensis, endemic to the rainforest of the southern Brazilian Atlantic coast, andT. multigemmifera, endemic to inland gallery forests of the São Paulo state. In addition, four new combinations are made:T. cutiataensis (Brade) Salino,T. iguapensis (C. Chr.) Salino. A new name is proposed forDryopteris lugubris var.quadrangularis:T. montana Salino. The species treated here belong toThelypteris subg.Goniopteris due to the indument of furcate and stellate trichomes.     

Origin and taxonomic affinities of Thelypteris (subgen. Stegnogramma) burksiorum (Thelypteridaceae)

This paper examines the ecology, frond and spore morphology, gametophytes, and molecular biology ofThelypteris burksiorum to reveal its taxonomic affinities and phytogeographic origin. The species is endemic to Winston County in northern Alabama (U.S.A.) and only occurs in cave-like rockhouse habitats. A related species,T. pilosa, is widespread in central and southern Mexico, Guatemala, and Honduras.Thelypteris pilosa is extremely variable and our data suggest that current recognition of the varietiesmajor andpilosa is not warranted.Thelypteris pilosa is clearly closely related and likely sister toT. burksiorum. Thelypteris burksiorum exhibits the unusual production of gametophytic propagules. This, in combination with current levels of genetic diversity and reproductive biology, suggests thatT. burksiorum is an ancient Tertiary relict and not an example of recent long distance dispersal. Selection in rockhouse habitats has driven species away from their normal life cycle to partial or complete reliance on the gametophyte generation. The combination of a reduced yet fertile sporophyte and a gametophyte that may rely on gametophytic proliferation placesT. burksiorum in an intermediate evolutionary position relative to other rockhouse pteridophytes.     

A new species of Banara (Flacourtiaceae) from Bolivia

A new species,Banara boliviana, known only from Depto. Santa Cruz, Prov. Florida, in the easternmost Andes of Bolivia, is described and illustrated. It is compared toB. glauca from the northern Andes.     

A new species of Talauma (Magnoliaceae) from Bolivia

Talauma boliviana is described as new and illustrated. This species, first collected in 1989, is the only Magnoliaceae known from Bolivia. It seems to be most closely related toT. sambuensis of northwestern Colombia and eastern Panama.     

渐尖毛蕨(金星蕨科)四个新异名

根据标本研究和野外观察,将疏羽毛蕨、拟渐尖毛蕨、慈利毛蕨和光叶毛蕨处理为渐尖毛蕨的异名。     

A new species of Morella (Myricaceae) from Bolivia and Argentina

Morella chevalieri is described as new and is illustrated; it grows in the Andes in northern Argentina and southern and central Bolivia. A key that differentiates this new species from the monoeciousMyrica pubescens is presented. The dioecious Morella chevalieri is characterized by the following: leaf blade elliptic to narrowly elliptic, margin serrate (at least in the distal 2/3); staminate flowers with one or no secondary bracts (if present, linear or band-shaped) and secondary bracts in the pistillate flower 2–3 (seldom 4).

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Resumen  Se describe e ilustra aMorella chevalieri como nueva especie; se distribuye en los Andes de la parte norte de Argentina y de las partes sur y central de Bolivia. Se presenta una clave que diferencia a esta nueva especie de la monóicaMyrica pubescens. La dióica Morella chevalieri se reconoce por los siguientes caracteres: lámina de la hoja elíptica o angostamente elíptica, margen aserrada (al menos en las dos terceras partes distales); flores estaminadas sin o con una bráctea secundaria (esta con forma linear o acintada) y brácteas secundarias de la flores pistiladas de 2 a 3 (raramente 4).

     

A new yellow-flowered species of Cuphea (Lythraceae) from Bolivia

Cuphea luteola is described from cerrado vegetation in Noel Kempff Mercado National Park, eastern Bolivia. It is assigned to sectionEuandra subsectionOidemation and is distinguished by yellow flowers, linear uninerved leaves, and the inner surface of the floral tube pilose and without vesicles. Several species of the subsection share one or more characters withC. luteola, but none are closely similar.     

Three new species of Adiantum (Pteridaceae) from Bolivia and Peru

Three new species from Bolivia and Peru (Adiantum solomonii, A. tryonii, andA. tuomistoanum) are described and illustrated.     

A new species of Ficus (Moraceae) from Bolivia and Peru

Ficus boliviana is described from Bolivia and Peru, illustrated, and compared with other species in the genus.     

Asplenium (sect. Hymenasplenium) basiscopicum, a new species from Bolivia

Asplenium basiscopicum is described, illustrated, and compared to the most similar species,A. purpurascens.     

Three new species of ferns (Woodsiaceae and Polypodiaceae) from Mexico

Three new species of ferns are described from Mexico:Athyrium tripinnatum, Cystopteris millefolia, andPolypodium praetermissum.     

A new species of Diplazium (Woodsiaceae) from Ecuador

A new species ofDiplazium,D. lellingeri from Ecuador, is described and illustrated.

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Resumen  Se describe e ilustra una nueva especie deDiplazium de Ecuador,D. lellingeri.

     

国产毛蕨属（金星蕨科）六新异名

将乐清毛蕨（ Cyclosorus luoqingensis ）处理为德化毛蕨（C．dehuaensis）的异名,南岭毛蕨（C．narlingensis）和少羽毛蕨（C．paucipinnus）处理为[梣]叶毛蕨（C．fraxinifolius）的异名,倒披针毛蕨（C．oblanceolatus）处理为南平毛蕨（C．nanpingensis）的异名,雁荡毛蕨（C．yandongensis）和寻乌毛蕨（C．xunwuensis）处理为华南毛蕨（C．parasiticus）的异名,并作了相应的讨论。     

A new species in the Elaphoglossum petiolatum complex (Elaphoglossaceae) from Mexico

Elaphoglossum trichomidiatum is described from northeastern Mexico. The new species is a member of theE. petiolatum comples, which is widespread in tropical America, Africa, Southeast Asia, and the Pacific Islands. It is unique in the complex and in sectionLepidoglossa in bearing trichomidia on the abaxial blade surface.     

Variation in therbcL sequence ofStegnogramma pozoi subsp.mollissima (Thelypteridaceae) in Japan

Stegnogramma pozoi (Lagasca) K. Iwats. subsp.mollissima (Fischer ex Kunze) K. Iwats. is one of the most common ferns in Japan with a very broad geographical distribution and habitat ranges. We examined the intrasubspecific variation of therbcL gene, and found three types in the subspecies (Atami-1, Atami-2, and Tateyama types). The Atami-1 and 2 types shared three apomorphic nucleotides and their geographical distribution is intermingled. Thus, we considered them to have intraspecific variation. In contrast, the Tateyama type had 4–5 different nucleotides than the Atami types, and showed a more northern distribution. Leaf morphology of the Tateyama type is distinct from that of the Atami types, though the leaf shape in Tateyama type varies considerably and in some cases overlaps with other types. Ferns have fewer morphological features that are systematically significant than flowering plants because they lack complex reproductive organ. It is reasonable to expect that species recognition of ferns based only on leaf morphology can be fine tuned by molecular features. Variation in therbcL sequences might be useful as an indication of significant biological units.     

Four new species of Cayaponia (Cucurbitaceae) from Brazil and Bolivia

Four new species ofCayaponia are described and illustrated: three from Brazil (C. cogniauxiana, C. nitida andC. rugosa) and one from Brazil and Bolivia (C. ferruginea).     

Two new species of Araceae tribe Spathicarpeae from Bolivia

The tribe Spathicarpeae is one of the most poorly known-tribes in the Araceae. Recently, field collections in some areas of Bolivia have revealed many interesting members of this tribe. Two new species,Gorgonidium striatum Hett., P. L. Ibisch &; E. G. Gonç. andSpathantheum fallax Hett., P. L. Ibisch &; E. G. Gonç. are here described, illustrated, and compared to their closest relatives.     

Two new species of Blechnum (Blechnaceae) from the neotropics

Blechnum moranianum is a new species similar toB. loxense, andB. nigrum is segregated from theB. fragile complex. Both are described and illustrated as result of the author's taxonomic fern work in Costa Rica. Blechnum moranianum es una especie nueva similar aB. loxense, yB. nigrum es segregada del complejoB. fragile. Ambas son aquí descritas e ilustradas como resultado de los trabajos taxonómicos del autor en los helechos de Costa Rica.     

A new species of Acanthosyris (Santalaceae) from Bolivia and a key to the woody South American Santalaceae

Acanthosyris asipapote, a new species from the vicinity of Santa Cruz, Bolivia, is described and illustrated. It is most similar to A. paulo-alvinii Barroso, known only from the state of Bahia, Brazil, but differs by leaf characters, pilose filaments, and smaller seeds. A key to the five woody genera and nine species of Santalaceae in South America is provided. Cervantesia, Jodina, and Myoschilos are probably monotypic; Santalum (in South America) has a single species, and Acanthosyris has five species.     

广西毛蕨属（金星蕨科）植物新资料

报道了广西毛蕨属Cyclosorus植物6个新记录种:三都毛蕨C.sanduensis,学煜毛蕨C.houi,缩羽毛蕨C.abbreviatus,毛囊毛蕨C.hirtisorus,巨型毛蕨C.subelatus,秦氏毛蕨C.chingii,并提供了广西产该属植物的分种检索表。