scholarly journals Rariglanda jerseyensis, a new ericalean fossil flower from the Late Cretaceous of New Jersey

Botany ◽  
2016 ◽  
Vol 94 (9) ◽  
pp. 747-758 ◽  
Author(s):  
Camila Martínez ◽  
Thereis Y.S. Choo ◽  
Daniella Allevato ◽  
Kevin C. Nixon ◽  
William L. Crepet ◽  
...  

A new species, Rariglanda jerseyensis, is described from well-preserved fusainized fossil flowers collected from the Late Cretaceous of New Jersey. Phylogenetic analyses and comparisons with extant and extinct taxa place R. jerseyensis within the monophyletic Ericales, sister to Clethraceae. The most distinctive feature of R. jerseyensis is a dense covering of conspicuous multicellular trichomes on the abaxial surface of the calyx. These multicellular trichomes appear to be glandular, and similar trichomes are found in several other, unrelated, Late Cretaceous fossils. In particular, the ericalean fossil Glandulocalyx upatoiensis bears the most similarity to R. jerseyensis, although differences in androecium and trichome characters clearly separate the two taxa. In addition, phylogenetic analyses confirm the position of G. upatoiensis within the Ericales, but place it within the sarracenioid clade, in a polytomy with Actinidiaceae and Roridulaceae. Past ecological studies associating trichomes with defense against herbivores and pathogens, coupled with the prevalence of multicellular trichomes on flowers among different lineages of fossils in the Cretaceous, suggest that glandular trichomes could have been an important adaptation against herbivore feeding during the Cretaceous.

Phytotaxa ◽  
2021 ◽  
Vol 500 (3) ◽  
pp. 217-224
Author(s):  
SHUAI PENG ◽  
YI-YAN CONG ◽  
JING TIAN ◽  
CAI-FEI ZHANG ◽  
GUANG-WAN HU ◽  
...  

Impatiens bullatisepala (Balsaminaceae), a new species supported by morphological and phylogenetic evidence from Fanjing Mountain, Guizhou province in China, is described here. It is morphologically similar to I. davidii but can be distinguished by its dorsally ridged lateral sepals with sunk reticulate veins and bullate projections on abaxial surface, 2–2.5 cm deep saccate lower sepal with ca. 0.8 cm long narrowly triangular tip at the mouth, and broadly ovate dorsal petal. Phylogenetic analyses of a combined dataset of nuclear ITS and plastid atpB-rbcL intergenic spacer DNA sequences furtherly confirmed its novelty.


2019 ◽  
Vol 44 (4) ◽  
pp. 844-850
Author(s):  
Diego Nunes da Silva ◽  
Maria José Reis da Rocha ◽  
Paulo José Fernandes Guimarães

Abstract—Fritzschia atropurpurea, an endemic new species from the Serra do Cipó, Espinhaço Range, Minas Gerais state, Brazil, is described and illustrated. This new species can be easily differentiated from its congeners by the combination of the following characters: hirsute-glandular trichomes covering the branches, petioles, leaves, bracteoles, pedicels, hypanthium, sepals, and the medial-apical portion of the right margin of the petals; membranaceous leaves with a dark purple abaxial surface; and long pedicels. Images from scanning electron microscopy, photos of the species in the field, a distribution map, and a key to identify the congeners that occur in the Serra do Cipó are presented. We suggest that if a formal assessment were performed, Fritzschia atropurpurea would probably be categorized as an Endangered (EN) species.


Phytotaxa ◽  
2019 ◽  
Vol 425 (3) ◽  
pp. 127-136 ◽  
Author(s):  
ZHEN-YING WEN ◽  
SI-JIN ZENG ◽  
WAN-LIN FAN ◽  
GUO-QIANG ZHANG ◽  
DONG-HUI PENG

A new species, Bredia malipoensis D. H. Peng, S. Jin Zeng & Z. Y. Wen, from China, is described and illustrated here. Bredia malipoensis is morphologically similar to B. longiradiosa C. Chen in having cordate leaf blades, umbellate inflorescence and undulate petals with unguiculate bases and retuse apices. It is characterized by its terete stem and petioles, green calyx lobes, purple anthers, yellow connective appendages and white filaments. It is also morphologically similar to B. velutina Diels in having a woody stem, unequal and cordate leaf blades, but it is differentiated by having no reddish trichomes, larger and semiorbicular calyx lobes, and unguiculate petal bases. Bredia malipoensis differs markedly from the former relatives by its densely tomentose indumentum (with uniseriate non-glandular and sparse glandular trichomes) both on vegetative and floral parts, basal leaf venation and purplish-red petals. Our phylogenetic analyses using nuclear ribosomal ITS and chloroplast trnV-trnM regions strongly support the generic placement of B. malipoensis and its relatives B. longiradiosa and B. velutina within Bredia.


2012 ◽  
Vol 32 (1) ◽  
pp. 105-116 ◽  
Author(s):  
Christopher A. Brochu ◽  
David C. Parris ◽  
Barbara Smith Grandstaff ◽  
Robert K. Denton ◽  
William B. Gallagher

Phytotaxa ◽  
2013 ◽  
Vol 88 (1) ◽  
pp. 1 ◽  
Author(s):  
ROSANA ROMERO

A new endemic species of Microlicia from campos rupestres of the Espinhaço Range is described and illustrated. The new species is characterized by having leaves of different sizes distributed along the branches, petioles 1–2 mm long, leaf blade that are attenuate at the base, with an entire margins, prominent and thickened nerves mainly on the abaxial surface, and an indumentum of short pale, glandular trichomes and sessile golden glands covering the whole plant. It resembles M. avicularis, M. tomentella and M. elegans, which also occur in the Espinhaço Range, in Minas Gerais state.  


Phytotaxa ◽  
2017 ◽  
Vol 327 (2) ◽  
pp. 196
Author(s):  
ANDERSON F. P. MACHADO ◽  
LUCIANO PAGANUCCI DE QUEIROZ

A new species of fig tree endemic to the Chapada Diamantina in the northeastern Brazilian state of Bahia, is described and illustrated. Ficus diamantina belongs to the Ficus sect. Americanae. The new species occurs sympatrically with Ficus clusiifolia and shows affinities with Ficus bahiensis from which it differs by the reddish color of young branches with epidermis flaking off, the tector and glandular trichomes on the lamina abaxial surface, the number of lateral veins, the divergence angle of basal pair of veins and the subsessile syconia. It occurs in high montane forests near Campos Rupestres (upland rocky fields) at altitudes up to 800 m.


Phytotaxa ◽  
2015 ◽  
Vol 222 (4) ◽  
pp. 295 ◽  
Author(s):  
Seong-Hyun Cho ◽  
Jung-Hoon Lee ◽  
Hyosig Won ◽  
Chhang Phourin ◽  
Young-Dong Kim

Sonerila bokorense, a new species of Melastomataceae from Cambodia, is described and illustrated. The new species is similar to S. calophylla, but it is distinguished by having aggregated tubercles, narrower leaves, and glandular trichomes on the pedicels, hypanthium, mid-veins of abaxial petals, and capsules.


Nematology ◽  
2018 ◽  
Vol 20 (7) ◽  
pp. 653-669 ◽  
Author(s):  
Oleg Gorgadze ◽  
Elena Fanelli ◽  
Manana Lortkhipanidze ◽  
Alberto Troccoli ◽  
Medea Burjanadze ◽  
...  

Summary A new species of entomopathogenic nematode, Steinernema borjomiense n. sp., was isolated from the body of the host insect, Oryctes nasicornis (Coleoptera: Scarabaeidae), in Georgia, in the territory of Borjomi-Kharagauli. Morphological characters indicate that the new species is closely related to species of the feltiae-group. The infective juveniles are characterised by the following morphological characters: body length of 879 (777-989) μm, distance between the head and excretory pore = 72 (62-80) μm, pharynx length = 132 (122-142) μm, tail length = 70 (60-80) μm, ratio a = 26.3 (23.0-29.3), H% = 45 (40-51), D% = 54 (47-59), E% = 102 (95-115), and lateral fields consisting of seven ridges (eight incisures) at mid-body. Steinernema borjomiense n. sp. was molecularly characterised by sequencing three ribosomal regions (the ITS, the D2-D3 expansion domains and the 18S rRNA gene) and the mitochondrial COI gene. Phylogenetic analyses revealed that S. borjomiense n. sp. differs from all other known species of Steinernema and is a member of the monticolum-group.


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