Blotiella reducta (C.Chr.) R.M.Tryon was originally described as a small fern from the Guinean Highlands of West Africa, but over time it has become a taxonomically confusing mixture of highland and lowland plants. In this publication we describe a new species, Blotiella confusa Jongkind & W. de Winter, sp. nov. based on most of the lowland material previously identified as B. reducta, and we restrict B. reducta to its original concept. A revised identification key for all African species of the genus is provided.

Magnolia champacifolia J. E. Dandy ex F. Gagnepain, sp. nov., originally described, but invalidly published in 1938, is validated here by designating the flowering sheet as the holotype. Otherwise, a new species of Magnolia L., M. lamdongensis V.T. Tran, N.V. Duy & N.H. Xia, sp. nov. from southern Vietnam is described and illustrated. It is distinguished from the closely related M. champacifolia J. E. Dandy ex F. Gagnepain, sp. nov., and M. albosericea Chun & Tsoong by its leaf blades narrowly ovate, glabrous, apex long acuminate, petiole c. 3 cm long, tepals short and glabrous, peduncle c. 3 cm long and densely papillate when young, and gynoecium glabrous.

Trois orchidées nouvelles, du genre Cynorkis Thouars, sont décrites pour Madagascar. L'une d'entre elles (C. volombato Bosser, sp. nov.) pourrait constituer le type d'une section nouvelle du genre.

Six new species, Ophiopogon fruticulosus Aver., N.Tanaka & K.S.Nguyen, sp. nov., O. petraeus Aver. & N.Tanaka, sp. nov., Peliosanthes densiflora Aver. & N.Tanaka, sp. nov., P. hexagona Aver., N.Tanaka & K.S.Nguyen, sp. nov., P. lucida Aver., N.Tanaka & K.S.Nguyen sp. nov. and Tupistra breviscapa Aver. & N.Tanaka, sp. nov. (Asparagaceae) discovered in Laos or Vietnam are described and illustrated. Ophiopogon bockianus Diels is newly recorded for the flora of Vietnam. Ophiopogon mairei H.Lév. is regarded as a synonym of O. bockianus. The name Ophiopogon hayatae (N.Tanaka) N.Tanaka, Aver. & T.Koyama, comb. nov., stat. nov. is proposed as a new nomenclatural combination and status. Except for O. bockianus (= O. mairei), the other seven species here reported are endemic either to Vietnam (five species) or Laos (two species).

Jacques-Félix (1979) informally recognized the Memecylon normandii Jacq.-Fél. group with three species (M. normandii, M. macrodendron Gilg ex Engl., M. oubanguianum Jacq.-Fél.) from the forests of West and Central Africa. More recently this group has been formally treated as M. section Felixiocylon R.D.Stone. In this paper, four new species are described and illustrated for this section: M. korupense R.D.Stone, sp. nov. (South-West Region, Cameroon), M. fugax R.D.Stone, sp. nov. (South Region, Cameroon), M. alipes R.D.Stone, sp. nov. (Woleu-Ntem Province, Gabon & South Region, Cameroon), and M. biokoense R.D.Stone, sp. nov. (Bioko Sur Province, Equatorial Guinea). A lectotype is designated for M. macrodendron. New country-records are reported or confirmed for M. normandii (Nigeria), M. oubanguianum (Gabon, Congo-Kinshasa), and M. macrodendron (Gabon, Congo-Brazzaville). A key to the species of M. section Felixiocylon is provided, together with an assessment of conservation status for each species according to the criteria of the IUCN.

Une révision taxonomique du genre Ivodea Capuron est présentée. Trente espèces sont reconnues dont 27 endémiques de Madagascar, deux endémiques des Comores et une commune aux deux archipels. Dix-sept espèces sont nouvellement décrites (I. acuminata Rabarim., Rakoton., Phillipson & Lowry, sp. nov., I. analalavensis Rabarim., Rakoton., Phillipson & Lowry, sp. nov., I. ankeranensis Rabarim., Rakoton., Phillipson & Lowry, sp. nov., I. antilahimenae Rabarim., Rakoton., Phillipson & Lowry, sp. nov., I. aymoniniana Rabarim., Rakoton., Phillipson, Lowry & M.Pignal, sp. nov., I. capuronii Rabarim., Rakoton., Phillipson & Lowry, sp. nov., I. delphinensis Rabarim., Rakoton., Phillipson & Lowry, sp. nov., I. macrocarpa Rabarim., Rakoton., Phillipson & Lowry, sp. nov., I. mahaboensis Rabarim., Rakoton., Phillipson & Lowry, sp. nov., I. mananarensis Rabarim., Rakoton., Phillipson & Lowry, sp. nov., I. mayottensis Labat & M.Pignal, sp. nov., I. moheliensis M.Pignal & Labat, sp. nov., I. occidentalis Rabarim., Rakoton., Phillipson & Lowry, sp. nov., I. petrae Rabarim., Rakoton., Phillipson & Lowry, sp. nov., I. ravelonarivoi Rabarim., Rakoton., Phillipson & Lowry, sp. nov., I. razakamalalae Rabarim., Rakoton., Phillipson & Lowry, sp. nov. et I. toliarensis Rabarim., Rakoton., Phillipson & Lowry, sp. nov.), une nouvelle combinaison est créée (I. decaryana (H. Perrier) Rabarim., Rakoton., Phillipson & Lowry, comb. nov.), et une variété a été élevée au rang d'espèce (I. lanceolata (Capuron) Rabarim., Rakoton., Phillipson & Lowry, comb. et stat. nov.). Les membres du genre se distinguent les uns des autres par les caractères du limbe foliaire (notamment la taille, la forme, la texture et la nervation) et du pétiole (la présence/absence d'une articulation et d'ailes), le type d'indument sur des organes divers, la taille et la position de l'inflorescence et de l'infrutescence, et les caractéristiques de la surface de fruit. Une clé d'identification des espèces est présentée en français et en anglais, avec des cartes de distribution, une évaluation préliminaire du statut de conservation de chaque espèce et des illustrations des espèces nouvellement décrites.

La taxonomie des Rutaceae-Toddalieae du Cameroun revisitée sur la base de l'analyse des caractères morphologiques du matériel fertile a permis de reconnaître quatre espèces nouvelles dont Vepris adamaouae Onana, sp. nov. par le limbe des folioles décurrent sur le pétiolule, des inflorescences longues à axes filiformes et des étamines environ deux fois plus longues que les pétales ; V. araliopsioides Onana, sp. nov., par les feuilles 5-foliolées et des fruits à exocarpe fovéolé ; V. letouzeyi Onana, sp. nov. par des pétioles ailés, des fruits à exocarpe sillonné et finement fovéolé ; et V. montisbambutensis Onana, sp. nov. par la plus petite taille des feuilles et des fruits par rapport aux autres espèces du genre. Par ailleurs le matériel qui se distingue par les pétiolules réduits à un renflement représente certainement une espèce nouvelle qui n'a pas été validée à cause de l'absence de fleurs et fruits matures. Toddaliopsis ebolowensis (Engl.) Onana, comb. nov. est lectotypifié, ce qui permet la validation de la combinaison nouvelle V. ebolowensis (Engl.) Onana, comb. nov. L'identité véritable de Teclea campestris et V. tabouensis est proposée : les deux espèces sont conspécifiques respectivement de V. heterophylla (Engl.) Letouzey et de V. soyauxii (Engl.) Mziray. Une clé pour distinguer les espèces est proposée. Les nouveaux taxons et ceux dont l'identification était confuse ou de position taxonomique incertaine, sont illustrés et leur distribution géographique est présentée.

A new species of Acropogon Schltr. (Malvaceae, Sterculieae) is described from New Caledonia. Acropogon moratianus Callm., Munzinger & Lowry, sp. nov. is endemic to three ultramafic massifs, Boulinda, Kopéto and Paéoua, along the north-western coast of Grande Terre. This rare, endangered species differs from other members of the genus by its large 5-lobed leaves whose abaxial surface is covered by erect to divergent stellate trichomes and the subspherical shape of its follicles, which bear a pointed apex. Line drawings and color photos are provided, along with a discussion of its morphological affinities and a preliminary risk of extinction assessment.

Thirteen types of stomata along with 18 subtypes and 3 intermediate subtypes between brachyparahexacytic monopolar and dipolar are reported here to be present in the leaves of Pterygota alata (Roxb.) R. Br. var. alata and Pterygota alata (Roxb.) R. Br. var. irregularis (W. W. Sm.) Deb & S. K. Basu. The foliar epidermal cells are either polygonal, rectangular, or triangular, having either straight anticlinal walls or sinuous to undulate walls, and isodiametric in surface view. The observed stomata are amphibrachyparacytic, amphicyclocytic, anisocytic, anomocytic, anomotetracytic, brachyparacytic, brachyparahexacytic, brachyparatetracytic, cyclocytic, paracytic, parahexacytic (dipolar), paratetracytic and stephanocytic. Besides these, the presence of giant stomata is a significant finding. Cuticular striations are present on the subsidiary cells, epidermal cells and sometimes even on guard cells.

The diversity of the floral characters in 17 species of Scrophulariaceae Juss. (belonging to 12 genera) was carried out through the tracing of their states as pictured by the organ vascularization. According to the statement of evolution (floral criteria) the character states were given evolutionary grades and the latter were “clipped” to their corresponding taxa. Trends of evolution in the floral characters were found to be gamosepaly, sympetaly, bilateral symmetry, reduction trends in the number of stamens as well as their vascularization and the occasional presence of a placental vascular cord as a fusion product of the carpellary ventral traces. None of the taxa under investigation could be considered as advanced over the other since all retained mosaic evolution expressed by variation in the vascular pattern in sepals, petals, stamens and carpels. In addition the obtained data confirmed that the line of evolution inside tribe Antirrhineae is from Antirrhinum majus L. (representing less advanced case) to Kickxia aegyptiaca (L.) Nábělek (the most advanced studied species). Russelia equisetiformis Schlecht. & Cham. occupied the lowest position vs Scrophularia xanthoglossa Boiss. (tribe Cheloneae). The ventral cord and lateral carpellary bundles pattern supported the taxonomic location of Paulownia tomentosa (Thunb.) and Torenia fournieri Linden ex E. Fourn. under family Scrophulariaceae.