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Friday, November 15th, 2024
| Time | Event | ||||||||
| 2:04a | [Botany • 2024] Crinum andhricum (Amaryllidaceae) • A New Species from the Eastern Ghats of Andhra Pradesh, India
Abstract Crinum andhricum (Amaryllidaceae), a new species from the Northern Eastern Ghats of Andhra Pradesh is described and illustrated. It is closely related to Crinum amoenum and C. stracheyi, but differs in its number of flowers per inflorescence, shape of the perianth lobes and filament length. Dry deciduous forest, Eastern Ghats, Flora, Novelty, Monocots Ladan Rasingam, Goparaju Susmitha, Jamuda Ranjana, Pasupula Ranjithkumar and Parthiban Arikrishnan. 2024. A New Species of Crinum (Amaryllidaceae) from the Eastern Ghats of Andhra Pradesh, India. Phytotaxa. 671(2); 205-210. DOI: doi.org/10.11646/phytotaxa.671.2.10 | ||||||||
| 2:19a | [Botany • 2024] Pitcairnia asmussii (Bromeliaceae: Pitcairnioideae) • A New Species from Caracas, Venezuela
Abstract A new species of Pitcairnia similar to P. xanthocalyx Mart. is described, compared with this species and illustrated. The flowers of this new species has shorter pedicel, but larger sepals and petals, and it has dimorphic, non-petiolate leaves. The species was discovered by Matthias Asmuss from Caracas, Venezuela and cultivated at the Utrecht Botanical Gardens. Bromeliaceae, Pitcairnioideae, Taxonomy, Venezuela, Monocots
Pitcairnia asmussii Gouda spec. nov. Type:—Venezuela, Aragua, entre Cata y Cuyagua, Parque Nacional Henri Pittier, ... 4 (holotype VEN!). Diagnosis:—A Pitcairnia xanthocalyx Mart. like species that differs from it by dimorphic leaves in the new shoots
(starting with short narrow triangular coarsely serrate and pungent leaves vs. leaves all alike), leaves not (sub-)petiolate
(vs. subpetiolate), the sheath spinose serrulate in upper half and glabrous (vs. entire and covered with a membrane of
scales), the blade entire (except the base sometimes vs. laxly serrulate), flower pedicel shorter (0.8–0.9 vs. 1.5–2 cm),
sepals longer ( [2–]2.5–2.8 vs. 1.5–2 cm) and petals longer (7–8.4 vs. 4.5–5 cm). Etymology:—This species is named after Matthias Asmuss from Caracas who is dedicated to study Bromeliaceae
from Venezuela and who collected this new species. Eric J. GOUDA. 2024. Pitcairnia asmussii (Bromeliaceae), A New Species from Venezuela, close to P. xanthocalyx Mart. Phytotaxa. 671(2); 139-143. DOI: doi.org/10.11646/phytotaxa.671.2.3  | ||||||||
| 2:19a | [Botany • 2024] Typhonium karsticola & T. pallescens • Two New Species and Three New Records for the Genus Typhonium [Taxonomic Studies of Araceae in Myanmar VIII]
Abstract As part of our ongoing research to revise and reveal the true diversity of the family Araceae in Myanmar, we describe two new Typhonium species, T. karsticola and T. pallescens, from Mon State and the Sagaing Region. Additionally, we report for the first time the occurrence of T. albidinervium, T. laoticum, and T. roxburghii in Myanmar. A detailed taxonomic account of the two new species including morphological comparison with closely similar species and relevant information on the newly recorded species are provided below. With the addition of these two new species and three newly recorded species, Myanmar now has a total of 17 Typhonium with 47% endemicity. Keyword: Aroideae, Areae, Indochina, Karst limestone, paddy fields, Typhonium karsticola, Typhonium pallescens
Typhonium karsticola K.Z.Hein, Saensouk & Naive, sp. nov. Diagnosis: Typhonium karsticola is most similar to Typhonium orbifolium Hett. & Sookch. from Thailand (Hetterscheid et al., 2001), but it differs in having a hysteranthous habit (vs. synanthous in T. orbifolium), clavate staminodes with a red or reddish-white slender base and a white globose head (vs. white clavate staminodes in T. orbifolium), a shorter staminate zone (ca. 4 mm vs. 9–10 mm in T. orbifolium), yellow stamens (vs. white stamens in T. orbifolium), and a spreading declinate appendix (vs. erect in T. orbifolium). The shape of the staminodes in Typhonium karsticola resembles those of Typhonium praelongum Serebryanyi & Hett. from Vietnam (Serebryanyi et al., 2023), but it differs significantly by having a depressed-globose tuber (vs. conic tuber in T. praelongum), a much shorter peduncle (0.3–0.4 cm vs. 6–7 cm in T. praelongum), a spathe limb 3–4 times longer than the spathe tube (vs. spathe limb 7– 9 times longer than the spathe tube in T. praelongum), and a shorter spadix (ca. 7 cm vs. ca. 35 cm in T. praelongum). Etymology: The specific epithet ‘karsticola’ is derived from the German noun ‘karst’ (referring to a limestone landscape), and the Latin suffix ‘-cola’, (meaning inhabitant of or dwelling in), with reference to the species’ habitat preference being crevices of limestone within karst landscapes.
Typhonium pallescens K.Z.Hein, Saensouk & Naive, sp. nov. Diagnosis: Typhonium pallescens is unique within the genus by the pedatisect leaf blade with up to 11 linear lobes, the simultaneous development of 2 or 3 inflorescences, and the adaxial surface of the spathe limb which is dark purple during early pistillate anthesis and gradually becomes pale purplish-brown at late pistillate anthesis. The pedatisect leaf blade of T. pallescens closely resembles that of T. pedatisectum Gage from Magway Region, Myanmar (Gage, 1903) with up to 11 linear lobes, but it differs by having a lanceolate spathe limb (vs. ovate spathe limb in T. pedatisectum), a white sterile interstice (vs. pink or red in T. pedatisectum), and an ivory or pale orange appendix (vs. purplish-black in T. pedatisectum). Etymology: The specific epithet is derived from the Latin ‘pallescens’ (becoming pale), referring to the adaxial surface of the spathe limb, which is dark purple during early pistillate anthesis and gradually becomes pale purplish brown at late pistillate anthesis.   Khant Zaw Hein, Surapon Saensouk and Mark Arcebal K. Naive. 2024. Taxonomic Studies of Araceae in Myanmar VIII: Two New Species and Three New Records for the Genus Typhonium. Taiwania. 69(4); 537-544. DOI: 10.6165/tai.2024.69.537 taiwania.ntu.edu.tw/abstract/2033 | ||||||||
| 1:38p | [PaleoMammalogy • 2024] Parutaetus oliveirai • Revealing the Diversity of Paleogene Cingulates from Brazil: A New Species of Parutaetus (Cingulata: Chlamyphoridae: Euphractinae) in the Guabirotuba Formation (middle–late Eocene)
ABSTRACT Parutaetus is an early-diverging Euphractinae cingulate that inhabited South America during the middle Eocene–early Oligocene. Four species are known: P. chicoensis, P. clusus, P. chilensis, and P. punaensis. Here, we describe a new species of this genus from Guabirotuba Formation (middle-upper Eocene of Brazil). The osteoderms differ from other species of the genus by presenting: (i) more surface glandular and piliferous foramina; (ii) the articulation surface of the area between the osteoderms is flat and full of pronounced, round, and anastomosed projections forming serrated external and medial edges with a median projection (indentations); and (iii) larger size than other species of the genus. In combination, this suite of traits is not present in other species of the genus. The increase in the number of surface glandular and piliferous foramina may be associated with the global cooling that occurred during the middle–late Eocene that affected the South American fauna. Finally, the new species expands the knowledge about the diversity of taxa that inhabited southeast South America during the Paleogene.
Parutaetus oliveirai Tabata D. F. Klimeck, Martín R. Ciancio, Fernando A. Sedor and Leonardo Kerber. 2024. Revealing the Diversity of Paleogene Cingulates from Brazil: A New Species of Parutaetus (Euphractinae) in the Guabirotuba Formation (middle–late Eocene). Journal of Vertebrate Paleontology. 44(1); e2403581. DOI: doi.org/10.1080/02724634.2024.2403581 |
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