''Ramariopsis'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of coral fungi in the family

Clavariaceae The Clavariaceae are a family of fungi in the order Agaricales. Originally the family contained most of the clavarioid fungi (club and coral fungi), but in its current sense is more restricted, albeit with a greater diversity of basidiocarp (frui ...

. The genus has a collectively widespread distribution and contains about 40 species. The name means 'having the appearance of ''

Ramaria The genus ''Ramaria'' comprises approximately 200 species of coral fungi. Several, such as '' Ramaria flava'', are edible and picked in Europe, though they are easily confused with several mildly poisonous species capable of causing nausea, vom ...

Taxonomy

''Ramariopsis'' was originally defined as a

subgenus In biology, a subgenus ( subgenera) is a taxonomic rank directly below genus. In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between the ge ...

of ''

Clavaria ''Clavaria'' is a genus of fungi in the family Clavariaceae. Species of ''Clavaria'' produce basidiocarps (fruit bodies) that are either cylindrical to club-shaped or branched and coral-like. They are often grouped with similar-looking species ...

'' by Dutch mycologist

Marinus Anton Donk Marinus Anton Donk (14 August 1908 – 2 September 1972) was a Dutch mycology, mycologist. He specialized in the Taxonomy (biology), taxonomy and nomenclature of mushrooms. Rolf Singer wrote in his obituary that he was "one of the most outstandin ...

in 1933. Several European species similar to the

type Type may refer to: Science and technology Computing * Typing, producing text via a keyboard, typewriter, etc. * Data type, collection of values used for computations. * File type * TYPE (DOS command), a command to display contents of a file. * ...

, '' Clavaria kunzei'', were included: '' Clavaria subtilis'', '' Clavaria pyxidata'', '' Clavaria angulispora'', and '' Clavaria pulchella''. In Donk's concept, defining characteristics of the group included small, branching, fruitbodies with a stipe, and an almost

cartilaginous Cartilage is a resilient and smooth type of connective tissue. Semi-transparent and non-porous, it is usually covered by a tough and fibrous membrane called perichondrium. In tetrapods, it covers and protects the ends of long bones at the joints ...

consistency to the

flesh Flesh is any aggregation of soft tissues of an organism. Various multicellular organisms have soft tissues that may be called "flesh". In mammals, including humans, ''flesh'' encompasses muscles, fats and other loose connective tissues, ...

Spores In biology, a spore is a unit of sexual (in fungi) or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions. Spores form part of the life cycles of many plant ...

are small and

hyaline A hyaline substance is one with a glassy appearance. The word is derived from , and . Histopathology Hyaline cartilage is named after its glassy appearance on fresh gross pathology. On light microscopy of H&E stained slides, the extracellula ...

(translucent), spherical to

ellipsoid An ellipsoid is a surface that can be obtained from a sphere by deforming it by means of directional Scaling (geometry), scalings, or more generally, of an affine transformation. An ellipsoid is a quadric surface; that is, a Surface (mathemat ...

, and have a surface ornamentation ranging from echinulate (spiny) to verruculose (covered with small warts).

E.J.H. Corner Edred John Henry Corner FRS (12 January 1906 – 14 September 1996) was an English mycologist and botanist who occupied the posts of assistant director at the Singapore Botanic Gardens (1929–1946) and Professor of Tropical Botany at the Univ ...

promoted the subgenus to generic status in his 1950 world

monograph A monograph is generally a long-form work on one (usually scholarly) subject, or one aspect of a subject, typically created by a single author or artist (or, sometimes, by two or more authors). Traditionally it is in written form and published a ...

of clavarioid fungi.

Ron Petersen Ronald H. Petersen, more commonly known as Ron Petersen, born in 1934, is a mycologist and professor emeritus at the University of Tennessee The University of Tennessee, Knoxville (or The University of Tennessee; UT; UT Knoxville; or colloq ...

emended the genus in 1966 to include smooth-spored species, such as '' R. minutula''. Three years later, he proposed the subgenus ''Laevispora'' to contain the smooth-spored species. In 1985, Pegler and Young used

electron microscopy An electron microscope is a microscope that uses a beam of electrons as a source of illumination. It uses electron optics that are analogous to the glass lenses of an optical light microscope to control the electron beam, for instance focusing i ...

to examine the

ultrastructural Ultrastructure (or ultra-structure) is the architecture of cells and biomaterials that is visible at higher magnifications than found on a standard optical light microscope. This traditionally meant the resolution and magnification range of a c ...

details of the spore surface, which revealed that the spores considered smooth with conventional light microscopy were ornamented at the ultrastructural level. They determined that the genus could be divided into three groups based on spore ornamentation. The ''Kunzei'' group have a discontinuous tunica (sheath) that form verrucae (warts); the ''Biformis'' group have a continuous tunica that form verrucae; and the ''Minutula'' group have a continuous tunica that form rugosities (wrinkles or creases).

Description

Species have upright

fruit bodies The sporocarp (also known as fruiting body, fruit body or fruitbody) of fungi is a multicellular structure on which spore-producing structures, such as basidia or asci, are borne. The fruitbody is part of the sexual phase of a fungal life cyc ...

that are stalked, with several branches, often dichotomously, sometimes antler-like. The branches can be cylindrical or flattened, with a pointed or rounded apex, and the texture of the

can be brittle or fairly tough, and in various colours.

Hypha A hypha (; ) is a long, branching, filamentous structure of a fungus, oomycete, or actinobacterium. In most fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium. Structure A hypha consists of one o ...

e are more or less swollen, with

clamps Clamp may refer to: Tools and devices *Brick clamp, an early method of baking bricks *Clamp (tool), a device or tool used to hold objects in a fixed relative position (many types listed) **C-clamp **C-clamp (stagecraft) **Riser clamp, a device u ...

. The

basidia A basidium (: basidia) is a microscopic spore-producing structure found on the hymenophore of reproductive bodies of basidiomycete fungi. The presence of basidia is one of the main characteristic features of the group. These bodies are also ...

are mostly four-spored. Spores are broadly

or roughly spherical, with a maximum length of 5.5

μm The micrometre (Commonwealth English as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American English), also commonly known by the non-SI term micron, is a unit of length in the International System ...

. They are

, finely echinulate or warted, and each contains a large oil-drop or guttule.

Distribution

''Ramariopsis'' species are widely distributed in semi-evergreen to wet evergreen shola forests of the Western Ghats, Kerala, India and occur scattered in dense clumps on soil and rarely on rotten wood. Two species, viz. ''Ramariopsis kunzei'' and ''R. pulchella'' have been reported from the Western Ghats.

Species

In December 2024,

Index Fungorum ''Index Fungorum'' is an international project to index all formal names (scientific names) in the fungus kingdom. As of 2015, the project is based at the Royal Botanic Gardens, Kew, one of three partners along with Landcare Research and th ...

included more than 41 valid species of ''Ramariopsis''. Petersen described over a dozen new species from New Zealand in 1988. *'' R. agglutinata'' R.H.Petersen 1988 – New Zealand *'' R. alutacea'' R.H.Petersen 1988 – New Zealand *'' R. asperulospora'' (G.F.Atk.) Corner 1950 *'' R. asterella'' (G.F.Atk.) Corner 1950 *''R. atlantica'' (Gibertoni) 2016 - Brazil *'' R. avellanea'' R.H.Petersen 1988 – New Zealand *'' R. avellaneo-inversa'' R.H.Petersen 1988 – New Zealand *'' R. bicolor'' R.H.Petersen 1988 – New Zealand *'' R. californica'' R.H.Petersen 1969 *'' R. cinnamomipes'' R.H.Petersen 1978 *'' R. citrina'' Schild 1971 *'' R. clavuligera'' (R.Heim) Corner 1950 *'' R. costaricensis'' L.D.Gómez 1972 *'' R. cremicolor'' R.H.Petersen 1988 – New Zealand *'' R. crocea'' (Pers.) Corner 1950 *'' R. flavescens'' R.H.Petersen 1969 *''R. gilibertoi'' Agnello 2019 *'' R. hibernica'' Corner 1971 *''R. hirtipes'' 2020 *'' R. junquillea'' R.H.Petersen 1988 – New Zealand *'' R. kunzei'' (Fr.) Corner 1950 *'' R. longipes'' R.H.Petersen 1988 – New Zealand *'' R. luteotenerrima'' (Overeem) R.H.Petersen 1988 – New Zealand *'' R. novae-hibernica'' Corner 1971 *'' R. ovispora'' R.H.Petersen 1988 – New Zealand *'' R. pseudosubtilis'' R.H.Petersen 1969 *'' R. pulchella'' (Boud.) Corner 1950 *'' R. ramarioides'' R.H.Petersen 1988 – New Zealand *''R. robusta'' Matouš & Holec 2017 *''R. rufipes'' (G.F. Atk.) 1964 *'' R. subtilis'' (Pers.) R.H.Petersen 1978 *'' R. tenuicula'' (Bourdot & Galzin) R.H.Petersen 1969 *'' R. tortuosa'' R.H.Petersen 1988 – New Zealand

References

External links