A NEW SPECIES OF ARACHNIOTUS WITH AN OIDIODENDRON CONIDIAL STATE

1966 ◽  
Vol 44 (8) ◽  
pp. 1057-1061 ◽  
Author(s):  
G. L. Barron ◽  
C. Booth

A new species of Arachniotus is figured and described. This species, A. striatosporus, is characterized by having fusiform ascospores which appear striate in surface view because of the presence of five to nine more or less longitudinal ridges. The ascospores appear stellate in cross section. The species has a conidial state belonging to the form genus Oidiodendron.

1975 ◽  
Vol 53 (6) ◽  
pp. 560-564 ◽  
Author(s):  
L. H. Huang

Triangularia backusii n. sp. was isolated from a soil sample collected in Ohio, U.S.A., and was subjected to alcohol treatment. Triangularia backusii is characterized by oval to pyriform perithecia, elongate-clavate asci, and obovoid ascospores with hyaline, gelatinous appendages. The ascospores are two-celled with a transverse septum; the upper cell is obovoid with a truncate base and brownish black to black and the lower cell is triangular and pale brown to brown. The conidial state is assignable to the genus Phialophora. The new species differs from other known Triangularia species in having the largest ascospores.


2020 ◽  
Vol 297 (3) ◽  
pp. 295-309
Author(s):  
Márton Szabó ◽  
István Fózy

The present paper reports dental remains from Jurassic marine sediments of Hungary, referred to as Asteracanthus dunaii sp. nov. and Asteracanthus ornatissimus. Teeth of the new species Asteracanthus dunaii sp. nov. differ from all other Jurassic species of Asteracanthus by the unique occlusal ornamentation, by the presence of a mesiodistally running, low and wide transversal ridge (causing a hat-like, asymmetrical outline in cross-section view), and by the arched shape of the mesially domed second lateral teeth. The tooth material of the new species is assumed to belong to the same individual. The present study also highlights the importance of the revision of previously collected and/or not inventoried fossil materials housed in private and museum collections, and also that of untended sections of palaeontological collections worldwide. A revision of the Jurassic species of Asteracanthus, and a short summary of what we know about the feeding strategy and body size of Asteracanthus is also reported.


Zootaxa ◽  
2004 ◽  
Vol 398 (1) ◽  
pp. 1
Author(s):  
HEOK HEE NG

Kryptopterus platypogon, a new species of silurid catfish is described from the Rajang River drainage in northern Borneo. Kryptopterus platypogon, together with K. hexapterus and K. cheveyi, can be distinguished from congeners by a combination of the absence of the dorsal fin, a stronglyarched dorsal profile with a pronounced nuchal concavity and palatal teeth in a single elliptical patch. Kryptopterus platypogon differs from K. hexapterus in having a more strongly-projecting lower jaw, larger eye (14.1% HL vs. 8.0 12.6), longer maxillary (135.6% HL vs. 40.0 120.4) and mandibular (119.3% HL vs. 32.3 80.0) barbels that are flattened and ribbon-like (vs. flattened, but ovoid in cross section), and more ventrally-placed eyes (about one quarter of the orbital margin visible when the head is viewed ventrally vs. orbital margin barely visible), and from K. cheveyi in having a strongly projecting lower jaw (vs. upper and lower jaws of equal length), more anal-fin rays (83 vs. 66 71), narrower head (8.6% SL vs. 9.7 12.3) and smaller eye (14.1% HL vs. 18.9 22.7).


1968 ◽  
Vol 46 (1) ◽  
pp. 61-63 ◽  
Author(s):  
H. Butin

In southern Chile two species of Ceratocystis were found to be responsible for most of the initial blue stain in logs and lumber of Auraucaria araucana (Mol.) K. Koch. The more important Ceratocystis auraucariae Butin sp. nov. and its Verticicladiella conidial state are described and illustrated. This species is characterized by a fast-growing brown mat of mycelium, small, long-necked perithecia, and cylindrical, slightly curved ascospores. Ceratocystis moniliformis (Hedge.) C. Moreau, Melanconiopsis elzoi Speg., Epicoccum nigrum Link, and Cladosporium sp. were found as associated fungi.


Phytotaxa ◽  
2015 ◽  
Vol 208 (2) ◽  
pp. 147 ◽  
Author(s):  
Asanka Ranjana Bandara ◽  
Jie Chen ◽  
Samantha Karunarathna ◽  
Kevin D. Hyde ◽  
Pattana Kakumyan

Auricularia is an important genus among the jelly fungi due to its popular consumption and medicinal properties. A new species of Auricularia, A. thailandica is described from fresh collections made from the Philippines, Thailand and Southern China based on morphological and molecular characters. Auricularia thailandica differs from other species by having short and loosely arranged abhymenial hairs on the basidiomata and in the different size of the zones in a cross section of the basidiomata. The species is found to be widely distributed in Southeastern Asia. Phylogenetic relationships were inferred based on the nuclear ribosomal internal transcribed spacer (ITS) region. The new species is introduced with full description and illustrations.


Phytotaxa ◽  
2013 ◽  
Vol 141 (1) ◽  
pp. 55 ◽  
Author(s):  
James Lucas Costa-Lima ◽  
MARCCUS ALVES

Erythroxylum umbrosum, a new species of Erythroxylum sect. Archerythroxylum (Erythroxylaceae) of the Brazilian Atlantic Forest, which occurs in submontane forests in the states of Alagoas and Pernambuco, northeastern Brazil, is described and illustrated. It is characterized by having non-striated, reduced stipules that are shortly 3–setose at the apex, a staminal cup longer than the calyx lobes, and an endocarp with cylindrical cross-section. The morphological differences of the new species with related and sympatric species are discussed.


Bothalia ◽  
1991 ◽  
Vol 21 (1) ◽  
pp. 27-34 ◽  
Author(s):  
N. P. Barker ◽  
R. P. Ellis

Merxmuellera setacea N.P. Barker from the south-western Cape. South Africa, is formally described. Descriptions of the morphology and leaf anatomy, in transectional and surface view, as observed under the light- and scanning electron microscope are given. Comparisons between this taxon and other southern African arundinoid species are made on the basis of morphological and anatomical observations. While the morphology of M setacea is in keeping with the generic limits of Merxmuellera Conert. the leaf blade anatomy appears to be intermediate between Merxmuellera, Pentameris Beauv. and  Pentaschistis (Nees) Spach.


Bothalia ◽  
1993 ◽  
Vol 23 (1) ◽  
pp. 56-64
Author(s):  
L. Smook ◽  
R. P. Ellis

Panicum simulans Smook from northern Namibia is formally described. The morphology and leaf blade anatomy in transection and surface view, as observed under the light microscope, are described. The species is compared to others with which it has been confused in the past.  P. simulans can be readily distinguished from  P. novemnerve Stapf and P schinzii Hack, on the basis of both anatomical and morphological characters such as the venation of the lower glume and the photosynthetic anatomy, which is of the NAD-me subtype of the C4 photosynthetic pathway. On this basis it appears that P simulans is closely allied to the P. coloratum L. group of species and should be placed in section Panicum of subgenus Panicum.


Phytotaxa ◽  
2014 ◽  
Vol 158 (1) ◽  
pp. 105 ◽  
Author(s):  
Juan Antonio Jiménez ◽  
David Toren ◽  
James R. Shevock

Didymodon californicus is described as a new species from California, U.S.A. The new taxon is included in sect. Vineales (Steere) R.H. Zander, and characterized mainly by its large size, lanceolate leaves, plane margins throughout, the red to reddish orange color in KOH, costa ending below the apex, a hyaline area of rectangular cells on ventral surface of the costa, cross-section of the costa with numerous guide cells in 2–3 layers and without ventral stereids, and smooth to low-papillose laminal cells. Drawings and light microscope photographs of the main characters are given, and possible confusion with other closely related taxa is discussed.


Phytotaxa ◽  
2014 ◽  
Vol 166 (4) ◽  
pp. 293 ◽  
Author(s):  
TAMIRIS DAIANE DELGADO DE LIMA ◽  
ANDRÉ DOS SANTOS BRAGANÇA GIL ◽  
RAFAEL TREVISAN

Eleocharis pseudobulbosa, a new species of Cyperaceae from Southern Brazil (Capão Bonito, São Paulo), is here described based on external morphological studies. This species is characterized by the presence of conspicuous stolons with straw-colored scales, forming a bulb-like structure in the growing points of the new culms; circular to oval culms in cross section; spikelets with small number of flowers [10–25(–30)]; achene small (0.6 mm long) and slightly reticulate; and stylopodium as wide as the achene. A detailed illustration and a diagnostic comparison with close morphological related species are presented.


Sign in / Sign up

Export Citation Format

Share Document