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Thursday, August 29th, 2024
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| 6:08a | [Botany • 2024] Phlomoides bomiensis (Polygalaceae) • A New Species from Xizang, China
Abstract Phlomoides bomiensis, a new species in Bomi County, Xizang, China, was described and illustrated. In addition, Phlomoides longidentata, previously only known from Nepal and Bhutan, is newly recorded from Dingri County, Xizang, China. The phylogenetic placement of both species within the genus was analysed using nine plastid DNA markers (atpB-rbcL, psbA-trnH, rpl16, rpl32-trnL, rps16, trnK, trnL-trnF, trnS-trnG, trnT-trnL). Both species have brown-black trichomes inside the upper corolla lip and nested within the same subclade of Clade II. A diagnostic key to the Phlomoides species belonging to this subclade is provided. Key words: Lamioideae, Phlomideae, Phlomis, taxonomy, Tibet
Phlomoides bomiensis C.L.Xiang & Y.Zhao, sp. nov. Diagnosis: Phlomoides bomiensis is morphologically most similar to P. nyalamensis and P. breviflora. These species are often taller than 1 m and have a purple corolla with brown to black trichomes inside the upper lip. It differs from P. nyalamensis by its subtruncate to slightly emarginate calyx teeth, posterior filaments with reflexed appendages at base and floral leaves with obvious petioles (vs. obviously emarginate calyx teeth, posterior filaments without appendages and sessile upper floral leaves). It differs from P. breviflora by its corolla that is longer than 2 cm and its oblong nutlets (vs. corolla often shorter than 1.5 cm and inflated globose nutlets). The differences between the ten species from subclade IIa are listed in Table 2. ....  Yue Zhao, Ya-Ping Chen, Rui-Zhu Bai, Colin A. Pendry, Alexander P. Sukhorukov, Chun-Lei Xiang. 2024. A New Species and a new record of Phlomoides (Lamiaceae) from Xizang, China. PhytoKeys. 246: 15-26. DOI: doi.org/10.3897/phytokeys.246.129057 | ||||
| 3:32p | [Botany • 2024] Thismia occasa, T. chicoreoides& T. solomonensis • Three New Species and New Records of Thismiaceae in The Solomon Islands
Abstract Thismia (Thismiaceae), whose distributions are currently known from Asia, Australia, and South America, is newly recorded in the Solomon Islands. Through extensive field explorations, three new species of Thismia were discovered in the rainforest of the Solomon Islands and are herein delineated as T. occasa, T. chicoreoides, and T. solomonensis, all belonging to sect. Sarcosiphon. Comprehensive species descriptions, line drawings, and color plates are furnished for each species, accompanied by a distribution map delineating their respective ranges. Keyword: biodiversity, Burmanniaceae, endemism, mycoheterotrophic, Sarcosiphon, tropical rainforest, taxonomy  Thismia occasa T.C.Hsu, S.W.Chung & C.W.Lin, sp. nov. Diagnosis: Among the species in Thismia sect. Sarcosiphon, T. occasa is most similar to T. crocea in habit and flower colour, but it is different in its larger mitre approximately 1/2.5 (vs. 1/3–1/4) the length of the whole flower, mitre with 3 impressed sutures (vs. nearly connate), annulus formed by 6 low rectangular lobes (vs. 6 rounded, bilamellate lobes), stamens pendent from the apical margin of the floral tube (vs. sunken inside the floral tube), and lateral appendage bilobed (vs. more or less truncate). Etymology: The specific epithet "occasa" is derived
from the orange-red flower that imparts a sunset hue.
Thismia chicoreoides T.C.Hsu, S.W.Chung & C.W.Lin,
sp. nov. Diagnosis: Similar to Thismia viridistriata as it
possesses a blackish-brown-tinged flower adorned with
verrucose or finger-like protrusions, however, T.
chicoreoides is different in its perianth inside with 12
vertical flat (vs. partly detached from its surface) ribs,
apical end of individual connective slightly verrucose (vs.
several hairs ca. 0.15–0.2 mm long), lateral appendage
central lobe being largest (vs. smallest) and stigma lobes
triangular (vs. inverted trapezoid). Etymology: The specific epithet "chicoreoides" refers
to the verrucose flower, which resembles the appearance
of some species of Chicoreus, such as C. paini Houart. Thismia solomonensis S.W.Chung, T.C.Hsu & C.W.Lin,
sp. nov. Diagnosis: Thismia solomonensis resembles T. nigra
in vegetative characters. However, the new species differs
from the latter in its shorter stem, 2–12 mm tall (vs. up to
80 mm), yellowish-bronze perianth coloration (vs.
blackish-tinged), unlobed individual connectives (vs. 2
small lobes), and a glabrous apex (vs. several long hairs
in the middle). Etymology: The specific epithet refers to the Solomon
Islands, where the new species was discovered.  Shih-Wen Chung, Tian-Chuan Hsu, Che-Wei Lin, Tsung-Yu Aleck Yang, Moffat Fanerii, Fred Potisopa and Chia-Wei Li. 2024. Three New Species and New Records of Thismia (Thismiaceae) in The Solomon Islands. Taiwania. DOI: 10.6165/tai.2024.69.336 facebook.com/Darthvaderiana/posts/10225 |
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