Phytotaxa

**Resolving the taxonomic identities of some Dipcadi species from India**

2024-02-09T04:49:53+13:00

A new variety of Dipcadi concanense is described here which shares characters of D. concanense and D. janae-shrirangii but shows more affinity towards D. concanense. Dipcadi species with pure-white flowers and brownish-black seeds characters are separated into a new series within the genus Dipcadi. Dipcadi krishnadevarayae and D. montanum var. madrasicum have been synonymised in D. montanum. Half a century-long problem about the existence and status of D. maharashtrense and D. minor has been discussed.

Cystolepiota flavolamellata (Verrucosporaceae, Agaricales), a new species from Southeast Asia

2023-10-18T13:52:43+13:00

We present Cystolepiota flavolamellata a new species discovered in the tropical regions of Thailand and Laos. Morphological characters and multigene phylogenetic analyses, which encompass ITS, LSU, rpb2, and tef1 sequences, distinguish this species. Cystolepiota flavolamellata exhibits the following unique set of characteristics: basidiomata covered with light brown to brown granules or large pyramidal squamules; free yellowish white to light yellow lamellae; broadly ellipsoid to oblong-amygdaliform to ovoid basidiospores; absence of pleurocystidia; variably shaped cheilocystidia, i.e., oblong, clavate with or without appendicular apex, conical to utriform, fusiform; an epithelium for the pileus and stipe covering; and presence of clamp connections. Molecular analyses based on multiple genes confirm its separation from other known and sequenced Cystolepiota species.

**Taxonomic revision of Schizotechium (Caryophyllaceae) in Nepal, including one new record**

2024-02-12T06:55:59+13:00

Taxonomic revision of Schizotechium (Caryophyllaceae) in Nepal was done based on the extensive study of herbarium specimens deposited in various herbaria as well as our own collections. According to this study, Nepal is home to four species of Schizotechium: S. delavayi, S. devendrae, S. monospermum and S. paniculatum. Schizotechium devendrae that was collected from several locations in Nepal is reported to be a new record for Nepal. Schizotechium delavayi and Stellaria monosperma f. scabrifolia have been found to be conspecific, but due to prior publication of S. delavayi, S. monosperma f. scabrifolia has been treated as a synonym of S. delavayi. Lectotypification has been done for Stellaria crispata, Stellaria glandulifera and Stellaria nyalamensis. Previous studies have ignored to mention a Schizotechium species as the type of the genus Schizotechium. Therefore, this study considered Schizotechium monospermum as the type species of the genus Schizotechium in order to validly publish the genus in compliance with the rules of ICN. Taxonomic treatment, habitat, distribution, photo plates, as well as keys to each species, have been provided.

**Novelties in Randia L. (Gardenieae, Rubiaceae) from Brazil**

2024-04-17T12:25:23+12:00

Here we publish two novelties in Randia, a description of a new species (R. muricata) and the establishment of R. sulbahiana as a new name for Sphinctanthus insignis. Randia muricata is distinguished by a set of features, such as its muricate fruits, and the discolor venation on abaxial surface of the leaf blades, puberulent. The muricate fruits is an uncommon feature among species in this genus. R. sulbahiana is characterized by the facultative presence of thorns, linear or filiform calyx lobes, and the acute apex of corolla lobes. We provide descriptions, illustrations, figures, an assessment of conservation status, and distribution map of both species. A dichotomous key to distinguish Brazilian’s species of Randia is also provided.

Stellaria mcclintockiae (Caryophyllaceae) a new species from Kerala, India

2023-06-24T07:34:16+12:00

A new species of Stellaria from the Nelliyampathy hills of Palakkad district (Kerala, SW-India) is described and illustrated. The new species can be considered as part of the S. media group but differs from the various species with respect to bracts, sepals, petals, pollen morphology and seed surface architecture. Molecular analyses (ITS) confirmed the validity of the new taxon.

Revisiting the nomenclature and taxonomy of the Malagasy Kalanchoe uniflora (K. subg. Alatae; Crassulaceae subfam. Kalanchooideae), which has Kitchingia uniflora as its basionym, and its homotypic and heterotypic synonyms

2024-01-05T06:47:34+13:00

The Malagasy Kalanchoe uniflora (Crassulaceae subfam. Kalanchooideae) was at first described as a species of Kitchingia, but soon thereafter transferred to Kalanchoe. The taxonomy and nomenclature of Kalanchoe uniflora are reviewed and discussed in a historical context. An amplified description and illustrations are provided for the species. The typification of the name Kitchingia uniflora, basionym of Kalanchoe uniflora, is corrected, and the typification of the name Kalanchoe ambrensis, a heterotypic synonym of Kalanchoe uniflora, is dealt with.

Dendrobium jizhuyeense (Orchidaceae; Epidendroideae) a new species from China: evidence from morphology and DNA

2024-01-11T21:48:42+13:00

Dendrobium jizhuyeense, a new species from Sichuan, China, is described and illustrated in this study. Morphological study indicates that D. jizhuyeense is similar to D. hancockii, but differs in having oblong sepals, obovate-elliptic petals and an obovate lip, including a smaller stem, smaller leaf and different flower type. Molecular analyses based on nuclear and plastid markers indicate that D. jizhuyeense is closely related to D. hancockii, belonging to section Holochrysa.

Begonia dakrongensis (Begoniaceae), a new species from Dakrong Nature Reserve, Quang Tri province in Central Vietnam

2024-03-28T13:51:40+13:00

A new species of Begonia (Begoniaceae), B. dakrongensis, from Central Vietnam is described and illustrated. B. dakrongensis resembles B. abbreviata in its rhizomatous habit, short cymose-paniculate inflorescence with congested bracts, 4-tepaled staminate flowers, and 5-tepaled pistillate flowers. However, the new species markedly differs by having obtriangular-spathulate to oblong-obovate or widely obovate lamina (vs. ovate to broadly ovate), not oblique or nearly so (vs. oblique), widely obovate anthers (vs. narrowly obovate), and trigonous-globose ovary (vs. trigonous-ellipsoid).

Isodon maoershanensis (Lamiaceae), a new species from Guangxi, South China

2024-03-19T06:46:19+13:00

Isodon maoershanensis, a new species of Lamiaceae, is described here. The new species is morphologically closest to I. henryi and I. magathyrsus, because of some similar characteristics: leaf blade is hard papery and hairy on both sides, terminal panicle is composed of cymes, style and ovary are hidden in the lower lip of the boat-shaped corolla, filaments below the middle are pubescent, but the new species clearly differs from the latter two, by following characters: the leaf is densely covered with short stiff hairs and scattered glandular points above, with dense red glandular points and sparse stiff hairs along veins below, and the peduncle, pedicel, calyx and corolla are also covered with short stiff hairs and glandular points, at the same time the calyx and corolla are also covered with white long hairs with nodes, calyx lobes split to 1/2 or less.

Erratum: PEDRO DÍAZ JIMÉNEZ, THOMAS B. CROAT, JONATHAN D. AMITH, MIGUEL ÁNGEL PÉREZFARRERA & PEDRO A. AGUILAR-RODRÍGUEZ (2024) A new species of broad-leafed Anthurium (Araceae) from the central region of Veracruz, Mexico Phytotaxa 644 (1): 63–68.

2024-04-17T12:26:47+12:00

Erratum