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1.
Psychotria elephantina Lachenaud & Cheek is described as a new species. It is placed in P. sect. Involucratae (Petit) Verdc., endemic to the South West Region of Cameroon and is assessed as ‘Endangered’ (EN) using the IUCN criteria. The species is distinctive in P. sect. Involucratae due to its long petioles (6.5–12.0 cm), involucres of two pairs of large free bracts and green corollas with included stamens in both longistylous and brevistylous flowers. 相似文献
2.
Aspidistra albiflora C. R. Lin, W. B. Xu & Yan Liu (Asparagaceae) is described and illustrated as a new species from limestone areas in Guangxi, China. The new species is similar to A. cerina G. Z. Li & S. C. Tang, but differs in having the perianth white by the sides, white pistils, bracts longer than the perianth, anthers only 2 mm long, pistil obconical and stigma slightly enlarged, 4–5 mm in diameter. The new species is currently only known from the type locality in southwestern Guangxi, near the border to northern Vietnam. 相似文献
3.
Psychotria monensis Cheek & Séné (Rubiaceae) from lowland evergreen forest in western Cameroon is described and illustrated. Its conservation status is assessed as ‘Critically Endangered’ according to the IUCN criteria, and its taxonomic affinities are discussed. 相似文献
4.
Aspidistra punctatoides Yan Liu & C. R. Lin (Ruscaceae) is described and illustrated as a new species from limestone areas in southwestern Guangxi, China, near the border with northern Vietnam. It resembles A. punctata Lindl. in leaf size, a campanulate perianth densely covered with purple spots, lobes adaxially with two fleshy keels, and the peltate stigma, but differs by the stigma being adaxially truncate and densely papillate, and by the margin being 3‐ or 4‐lobed with lobes emarginate at apex. 相似文献
5.
George Gosline 《Nordic Journal of Botany》2009,27(5):353-358
Diospyros korupensis Gosline is described as a new species endemic to the Korup National Park in Cameroon and neighbouring areas on the slopes of Mt Cameroon. Diospyros onanae Gosline is described as a new species from the South and Southwest Regions of Cameroon allied to the poorly known D. soyauxii Gürke & K. Schum. ex. Gürke. 相似文献
6.
Aspidistra lingyunensis C. R. Lin & L. F. Guo (Asparagaceae) is described and illustrated as a new species from limestone areas in northwestern Guangxi, China. It resembles A. obconica C. R. Lin & Yan Liu in leaf size and its obconical and purplish red pistil, but differs by having a yellowish white perianth, with lobes oblong, explanate, 6–7 mm long, subequal to tube and a white stigma surface, ca 3 mm in diameter. The new species is rare, currently known only from northwestern Guangxi. 相似文献
7.
Robert Douglas Stone 《Nordic Journal of Botany》2013,31(1):113-117
Described and illustrated is Warneckea cordiformis R. D. Stone, an evidently localized endemic of coastal dry forest in Mozambique's Cabo Delgado Province. In ‘Flora Zambesiaca’ the new species would key to W. sansibarica (Taub.) Jacq.‐Fél., from which it is readily distinguished by the much smaller, ovate to cordiform leaves and white, short‐pedicellate flowers. Because of its evidently very limited occurrence as well as on‐going anthropogenic threats, Warneckea cordiformis is here assessed as ‘Critically Endangered’ (CR) B1a,b(iii) according to IUCN criteria. A key is provided to the Mozambican species of Warneckea. 相似文献
8.
Gonzalo Castillo‐Campos José G. García‐Franco María Luisa Martínez 《Nordic Journal of Botany》2013,31(4):449-452
Spathacanthus magdalenae Cast.‐Campos (Acanthaceae) is described and illustrated as a new riparian forest species from central Veracruz and from the eastern slopes of the volcano Cofre de Perote, Mexico. The new species is similar to Spathacanthus parviflorus, but differs in wider leaves and longer corolla tube. A key to all four species of Spathacanthus is provided. 相似文献
9.
Kaempfería grandifolia is described and illustrated from the Phu Phan National Park in NE Thailand. The somatic chromosome number is established to 2n = 22. Its affinities are discussed. 相似文献
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A new species of Lepiota, L. vellingana, is described and illustrated from Lahore, Pakistan. It is characterized by a campanulate to plano-convex, slightly umbonate, white pileus covered with pinkish brown scales, crowded lamellae, guttulate basidiospores, long trichodermial stipe elements, and long trichodermial pileal elements. 相似文献
13.
Morphological characteristics, as well as ultrastructure of pollen grains, chromosome numbers and karyotype analysis have been used to establish a new species of Saussurea from the Qinghai–Tibetan plateau. The new species, Saussurea pseudograminea Y. F. Wang, G. Z. Du et Y. S. Lian is easily distinguished from the similar S. graminea Dunn by having 2–3 capitula, involucre 0.7–1.2 cm in diameter, smaller pollen grains, pollen surface with larger and denser spines, achenes 4.0–5.5 mm long, 32 chromosomes, and a karyotype formula 2n = 2x = 32 = 18m + 10sm + 4st, whereas S. graminea has solitary capitula, involucre 1.2–2.0 cm in diameter, larger pollen grains, pollen surface with smaller and sparser spines, achenes 3–4 mm long, 28 chromosomes and a karyotype formula 2n = 2x = 28 = 6m + 20sm + 2st. The new species is distributed in Dianzhangou, Awanchang, and Gamaliang mountain regions of Maqu county in Gansu province. 相似文献
14.
The following article from the Nordic Journal of Botany , ‘Bauhinia saksuwaniae sp. nov. (Leguminosae‐Caesalpinioideae) from Thailand.’ by Sawai Mattapha, Pranom Chantaranothai and Somran Suddee, published online on 11 December 2013 in Wiley Online Library ( wileyonlinelibrary.com ), has been retracted by agreement between the authors, the journal Editor in Chief, Torbjörn Tyler and John Wiley & Sons Ltd. The retraction has been agreed due to the publication of a species under the name B. nakhonpranomensis, prior to the publication of this article. 相似文献
15.
Hydrobiologia - Three species of the oligochaete genus Pristina (Naididae, Clitellata), one of them new to science, are described from soil and litter samples originating from terra firme sites of... 相似文献
16.
Bauhinia sirindhorniae sp. nov., from Nong Khai Province, Thailand is described and illustrated. The pollen morphology has been studied. 相似文献
17.
Maudy Th. Smith J. P. Van Der Walt Y. Yamada Wilma H. Batenburg-Van Der Vegte 《Antonie van Leeuwenhoek》1989,56(3):283-288
A new species of the genus Zygozyma, Z. suomiensis, is described, based on the study of a single strain, derived from a bovine skin lesion. 相似文献
18.
A new, soil-associated species of the genus Debaryomyces, D. udenii, is described. The species is characterized by pusticulate rather than verrucate ascospores, and slowly lytic asci. 相似文献
19.
Gerronema wildpretii, collected in climactic sites of the monteverde forest of the Canary Islands is described and illustrated. Its macro- and microscopic features delimit this taxon as a new species. 相似文献
20.
A new species, Alexandrium camurascutulum sp. nov. MacKenzie et Todd, is described from specimens collected from Tasman Bay and the Marlborough Sounds New Zealand. These small (26–28 μm long × 21–24 μm wide) cells can be discriminated from other species in the Alexandrium minutum group by three distinctive morphological features. The sixth pre-cingular plate (6′′) is up to 1.6 times wider than high and the left side of the plate is concave resulting in a markedly ‘hooked’ appearance. In all specimens observed, the first apical plate (1′) does not directly connect with the apical pore plate (Po) and the posterior sulcal plate (S.p.) is markedly different from the usual A. minutum form and may contain a posterior attachment pore (pap) connected to the right side plate margin. The cells may or may not have an anterior attachment pore (aap) in the apical pore plate (Po). The cells display a prominent list along the left sulcal margin and the thecal surface is perforated with numerous areolated pores. A. camurascutulum sp. nov. has been observed occasionally over a number of years in coastal waters of the northern South Island of New Zealand. There is circumstantial evidence that suggests it is not toxic. 相似文献