Nomenclatural Notes and Typifications of Cordiaceae Names from the Flora of Argentina

During the preparation of the treatment of the family Cordiaceae for the Flora of Argentina project, some names were identified as requiring clarification following the Shenzhen Code. In this context, a lectotype is designated for Patagonula americana L. var. glabra Cham., a second-step lectotype for Varronia dichotoma Ruiz & Pav., and updates and supporting information for four names already typified by I. M. Johnston (Cordia guaranitica Chodat & Hassl., C. salicina DC., Lithocardium gerascanthus (L.) Kuntze var. puberulum Kuntze, and Saccellium lanceolatum Bonpl.) are provided. Furthermore, remarks on the type of P. tweediana Miers are provided.

New Species of Anthurium (Araceae) from Venezuela

A total of nine species of Anthurium Schott sect. Calomystrium Schott (Araceae) from Venezuela are treated. Most of the species have been confused with A. cartilagineum (Desf.) Kunth; a dichotomous key to distinguish them is provided. All but one of these species are endemic to the Cordillera de la Costa in northern Venezuela. Seven species are described as new: A. alfcardozoi Croat, A. coltovarense Croat, A. galipanense Croat, A. georgetatei Croat, A. guaicaipurense Croat & M. Hanson, A. hansonianum Croat, and A. ronliesneri Croat. One additional species, Anthurium species #1, is included in the key and is fully described but is not being formally published owing to inadequate material. In addition, A. cartilagineum (Desf.) Kunth is redescribed, and a more complete description is provided since it is a close relative to several of the species treated here.

Petrocodon anoectochilus, a Remarkable New Species of Gesneriaceae from Guangxi and Guizhou, Southwest China

Petrocodon anoectochilus F. Wen & B. Pan, a new species of Gesneriaceae from Guangxi and Guizhou in southwestern China, is described and illustrated. Although the leaf morphology of this new species looks similar to that of P. coriaceifolius (Y. G. Wei) Y. G. Wei & Mich. Möller and P. pseudocoriaceifolius Yan Liu & W. B. Xu, this remarkable new species can be easily distinguished from all other species of Petrocodon s.l. (the two above-mentioned species included) by the shape and color of its memorable corolla. Because of its restricted distribution and threatened environment, the current conservation status of this species should be assessed temporarily as “Endangered.”

Rubiacearum Americanarum Magna Hama Pars XLIX: Overview of the Neotropical Genus Tournefortiopsis (Guettardeae), With Some New Species and Subspecies

Guettarda L. (Rubiaceae) as traditionally circumscribed has been found to be polyphyletic in molecular analyses. Tournefortiopsis Rusby has been separated from it based on details of inflorescence arrangement, pyrene shape, and molecular analyses. We here find additional characters that distinguish this genus: valvate-induplicate corolla lobes and apical horns on the pyrenes. Some features that are usually consistent within species and often genera of Rubiaceae vary within some species of Tournefortiopsis, especially pubescence form and number of corolla lobes and locules. Our taxonomic review of this genus recognizes 12 species found in Central America and perhaps southern Mexico, the Lesser Antilles, and northern and Andean South America, and finds its center of diversity in the Andes of Colombia. Chomelia torrana C. M. Taylor is here transferred to Tournefortiopsis, and four species are newly described here plus one recently recognized variety is raised to species status, all in South America: T. crassifolia (Standl. ex Steyerm.) C. M. Taylor & A. C. Berger, T. deviana C. M. Taylor, T. robusta C. M. Taylor, T. sopkinii C. M. Taylor, and T. tamboana C. M. Taylor. Tournefortiopsis crispiflora (Vahl) Borhidi is here treated as widespread and morphologically variable, with a complex of forms that are not distinctive but completely separable and with notable diversification in Central America and the northern Andes. Four subspecies of T. crispiflora are recognized, with one circumscribed differently than previously and one newly described, T. crispiflora subsp. delicatula C. M. Taylor & A. C. Berger. The identity and characters of T. dependens (Ruiz & Pav.) Borhidi are clarified, and it is more widely distributed than previously noted. Six names are lectotypified.

Three New Species of Lauraceae

Three new species of Lauraceae are described and illustrated and their relationships are discussed. One new species, Beilschmiedia vohemarensis van der Werff, is endemic to Madagascar and differs from the similar B. microphylla (Kosterm.) Kosterm. in its type of pubescence and habitat. Licaria monsalveae van der Werff is restricted to the Choco region of Colombia and differs from the similar L. brasiliensis (Nees) Kosterm. in its tomentulose, not appressed pubescence. Ocotea sacculifera van der Werff is only known from Bolivia and differs from all other species of Ocotea Aubl. in its pouchlike domatia.

Astragalus dinawarii (section Incani), a New Species from the Talesh Mountains, Northwestern Iran

Astragalus dinawarii Bidarlord & F. Ghahrem. (Fabaceae) is described as a new species based on material collected on the Talesh Mountains, northwestern Iran. This species belongs to a large bifurcating section, Astragalus L. sect. Incani DC. Morphologically, it is close to A. bukanensis Maassoumi & Podlech, A. diversus Podlech & Maassoumi, and A. dilutuloides Maassoumi, F. Ghahrem. & Bagheri, sharing several densely hairy leaflets and stipitate legumes. This species is easily distinguished from similar species by a set of both vegetative and reproductive characters such as size, shape, number of leaflets, shorter calyx, and longer legume stipe. A detailed description and comparisons with similar taxa, color images, distribution and habitat, and conservation status of the new species are provided.

Piper callejasii (Piperaceae), a New Species from the Eastern Slopes of the Andes, Northern South America

A new species of Piper L. (Piperaceae) from the eastern slopes of the Andes in Colombia and Peru, P. callejasii W. Trujillo & M. A. Jaram., is described and illustrated, and morphological comparisons with similar species are discussed. Piper callejasii is distinguished by its stigmas being sessile, rather than on a long style as in four similar species. Its conservation status is suggested to be Endangered.

Isoetes baodongii (Isoetaceae), a New Basic Diploid Quillwort from China

Isoetes baodongii Y. F. Gu, Y. H. Yan & Yi J. Lu (Isoetaceae) is here described as a newly discovered, rare and endangered species of quillwort from eastern China. It has a basic diploid chromosome count of 2n = 22. Isoetes baodongii is similar to I. sinensis T. C. Palmer in its overall appearance and was previously misidentified as such. It differs from I. sinensis in its chromosome number and in megaspore ornamentation. In I. baodongii, both the proximal surface and distal surface of the megaspore are echinato-cristate, whereas in I. sinensis the proximal surface is echinate and the distal surface echinato-cristate. Microspores of I. baodongii have echinate ornamentation.

Silene aminiradii (Caryophyllaceae), an Interesting Alpine Plant in Iran

Botanical explorations in the alpine zone of the Shahvar and Shah Kouh Mountains from Semnan and Golestan Provinces (northeastern Iran) led to the collection of interesting specimens of the genus Silene L. (Caryophyllaceae). Taxonomic study of these plants and comparison with determined plant specimens showed that the specimens belong to an unknown species. I describe it as S. aminiradii Gholipour, belonging to section Auriculatae (Boiss.) Schischk. from northeastern Iran. The new species is compared with S. lucida Chowdhuri and S. crispans Litv. as the most similar species. Silene aminiradii is a caespitose perennial alpine gynodioecious plant with prostrate stems covered with dense, retrorsely simple hairs. The distribution, ecological features, reproductive phenology, and photos of S. aminiradii are presented.

Nomenclatural Revision of Heliotropiaceae Names Linked to Southern Cone Taxa

During the preparation of the treatment of the family Heliotropiaceae for Argentina, several names were identified as needing typification to stabilize their nomenclature. As a result, lectotypes are designated for six names (Heliophytum anchusifolium (Poir.) DC. var. angustifolium DC., Heliotropium claussenii A. DC. f. robustior Chodat, H. inundatum Sw. f. elliptica Chodat & Hassl., H. margaritense Hassl. ex I. M. Johnst., H. salicoides Cham., and Tournefortia elegans Cham.) and second-step lectotypes for two names (Heliotropium andinum Rusby and H. maximum Chodat & Hassl.). Furthermore, remarks on types of three names (Heliotropium chrysanthum Phil., H. rugosum Phil., and T. paniculata Cham.) are provided.