Phytotaxa

**Phylogeny and morphological characterization reveal new species and new records of Talaromyces species (Trichocomaceae, Eurotiales) from a phosphate mining area in Yunnan, China**

Wed, 20 May 2026 00:00:00 +1200

Two new species and one new ecotype record of Talaromyces (Trichocomaceae, Eurotiales) are described and illustrated from the rhizospheric soil of Coriaria nepalensis from Kunyang phosphate mining area in Yunnan Province, China. The new species possess colony, conidiophore and conidial characteristics that fit within the generic concept of Talaromyces. Detailed morphological observations clearly demarcate two of these from extant species and are hence described as new (T. coriaricola sp. nov., T. kunmingensis sp. nov.). Descriptions of asexual morphs and justification for establishing these new species are provided. The nuclear are sequenced ribosomal RNA genes as well as protein coding genes to infer phylogenetic relationships and discuss phylogenetic affinities with morphologically similar species. Our morphological distinction is further supported by phylogenetic discrimination. In particular, phylogenies depict a close relationship of T. coriaricola and T. kunmingensis constitute an independent phylogenetic lineage basal to T. heiheensis in Talaromyces section Trachyspermi. Talaromyces penicillioides is describe and its phylogeny investigated as new ecotype record Talaromyces section Talaromyces herein.

**A systematic study of Candolleomyces (Psathyrellaceae) in Punjab, Pakistan, revealed a new species**

Wed, 20 May 2026 00:00:00 +1200

During our macrofungal survey, we discovered a Candolleomyces species that did not conform to previously described taxa within the genus. Morpho-anatomical characteristics and phylogenetic analyses based on nrITS, LSU, and tef-1α confirmed the novelty and distinct phylogenetic placement of Candolleomyces lahorensis. Candolleomyces lahorensis is characterized by an umbonate, grayish-brown pileus with uplifted margins, grayish-brown lamellae, light-gray stipe, variable shapes of cheilocystidia such as ellipsoid, globose, and ovoid-pedunculate. Currently, eighty-one species of the genus Candolleomyces are known worldwide; however, with the inclusion of this species, the total number increases to eighty-two. Morpho-anatomical descriptions, phylogenetic analysis results, and comparison with phylogenetically allied species are provided.

**A new species of Peperomia subg. Tildenia (Piperaceae) from the Atacama Desert, Chile**

ALEJANDRO E. VILLARROEL, SERGIO T. IBÁÑEZ — Wed, 20 May 2026 00:00:00 +1200

Peperomia mucronulata is described as a new Chilean species, extending southwards the distribution of Peperomia subg. Tildenia along the Pacific coast. Morphological, geographical, and ecological data support its classification as a clearly different taxon from the species belonging to clade D or III (which includes morphologically similar species) and P. umbilicata. A detailed description is presented, along with information on its habitat and ecology, a distribution map, and the species illustration. Additionally, a comparative table highlights the characteristics that distinguish P. mucronulata from the seven morphologically similar Peperomia species. Peperomia mucronulata is suggested to be classified as Critically Endangered (CR) according to the IUCN Red List categories.

**A new species of Echeandia (Asparagaceae) from Jalisco and a key to the Mexican species with white tepals and connate anthers**

AARÓN RODRÍGUEZ, JUAN PABLO ORTIZ-BRUNEL, PEDRO DANIEL RIVAS-SALAZAR — Wed, 20 May 2026 00:00:00 +1200

Echeandia bracteosa is described with specimens from the municipality of Pihuamo, Jalisco, in western Mexico. The plants of the new species develop root-thickenings near by the corm. They grow 2–9 basal, linear-lanceolate leaves and a glabrous peduncle with 8–12 scarious bracts along it and below the first branch of the panicle. The flowers are inclinate with white tepals; the filaments are filiform, muricate, and contorted; and the anthers connate in a cone and with apical pores. Morphologically, E. bracteosa resembles E. parviflora. Both species have white tepals; filiform, muricate, and contorted filaments; and connate and poricidal anthers with anthesis occurring at down. However, E. bracteosa has glabrous peduncle and straight and ascendent leaves while the peduncles of E. parviflora are scabrellous toward the base and the leaves are falcate or incurved. In E. bracteosa, the anthers connate in a cone, whereas in E. parviflora these form a cylinder. In E. bracteosa, the capsules are cylindric as opposed to globose in E. parviflora. Echeandia bracteosa grows on calcareous rocks and crevices among them in tropical dry forest. In contrast, E. parviflora prefers soils derived from volcanic rocks. Color photographs, distribution maps, and a key for the species with white tepals and connate anthers in Mexico are included.

Sedum umbraculiforme (Crassulaceae): a new species from Fujian, China

Wed, 20 May 2026 00:00:00 +1200

A new species, Sedum umbraculiforme, was confirmed in Fujian Province of China, based on morphological and phylogenetic analyses. Phylogenetic analysis based on the ITS sequence showed that the new species belongs to S. sect. Sedum, and is adjacent to S. lipingense on the same clade with high support values (SH-aLRT=96.9, UFBS=99). S. bulbiferum, S. kawaraense and S. baileyi were also placed on the same clade with them, while it is distantly related to S. jinglanii and S. tianmushanense. S. umbraculiforme is morphologically similar to S. lipingense, but it can be distinguished by the inflorescence (dichasiums vs. cymes), a greater number of branch flowers (2–6 flowers vs. 1–2 flowers), longer sepals (4–5 mm vs. 2 mm), and the differently shaped nectar blades (oblong vs. broadly cuneate). According to the IUCN Red List Categories and Criteria, S. umbraculiforme qualifies as Vulnerable (VU) on the basis of Criterion D1, as the total number of individuals is fewer than 1,000.

**A new shrubby species of Euphorbia sect. Scatorhizae (E. subg. Chamaesyce; Euphorbiaceae) from southeastern Ethiopia**

Wed, 20 May 2026 00:00:00 +1200

Euphorbia leleensis, a new species from Lele Hill, Bale Zone, southeastern Ethiopia, is described and illustrated based on morphological and molecular evidence. Morphologically, the new species resembles E. suborbicularis, E. polyantha, and E. agowensis, but differs in having broadly ovate to suborbicular leaf blades, with a rounded to shallowly cordate base, caducous stipules, broadly ovate to triangular-cordate bracts, yellowish-green glands with a 3–4-lobed margin, subglobose to broadly oblong and sparsely pubescent capsules, and oblong to ovoid seeds. Phylogenetic analyses based on the nuclear ITS region recover two accessions of E. leleensis as a strongly supported clade (BS = 100 %; PP = 1), sister to E. agowensis (BS = 95%; PP = 1). These results place the new species Euphorbia sect. Scatorhizae within Euphorbia subg. Chamaesyce, confirming its recognition as a distinct species. The species is preliminary assessed as Endangered (EN) according to the IUCN Red List criteria.

**Lectotypification, emended description and new data on the distribution of the Vietnam endemic Phlogacanthus publiflorus (Acanthaceae)**

Wed, 20 May 2026 00:00:00 +1200

Phlogacanthus publiflorus (Acanthaceae), endemic to northern Vietnam, is lectotypified here to resolve taxonomic ambiguities identified during a review of its protologue and original materials. This study provides a comprehensive taxonomic treatment for the species, including an expanded geographical distribution based on new records. A detailed morphological description, supplemented by colour photographs, and scanning electron micrographs of pollen and seeds. A line drawing along with information on habitat, ecology, and phenology is presented. Based on the updated data, a conservation assessment is proposed following the IUCN Red List criteria. A taxonomic key to the species belonging to the genus Phlogacanthus in Vietnam is also provided.

Aristolochia pisidica (Aristolochiaceae), a new species from southern Anatolia, Türkiye

AYCAN TOSUNOGLU, OMER SOLAK-AMET — Wed, 20 May 2026 00:00:00 +1200

A new species, Aristolochia pisidica, is described from the Mediterranean region of southwestern Türkiye (ancient Pisidia), occurring at elevations ranging from 0 to 1315 m. The new species resembles A. baseri from the same region in its habit and flower color. Aristolochia pisidica, however, differs clearly by its narrower tube, mostly ex-auriculate, concave limb shape, glabrous auricles, smaller seeds, and unique seed ornamentation. The new species is also discussed considering the data and literature, as it was separated from the A. hirta group, which includes A. hirta and A. adalica. Indirectly, the boundaries of A. hirta populations have been redefined. Aristolochia pisidica is the 27th Aristolochia species known from Türkiye and the eastern Aegean islands, and the 15th endemic of the region. A distribution map of these species and an illustration of the new species are provided.