The genus Gloniella Sacc.
Saccardo, Syll. Fung. II: 765 (1883)

by Eric W.A. Boehm

The genus Gloniella was established by Saccardo (1883) to accommodate hysteriaceous fungi that possess hyaline phragmospores, from 3- to 9-septate. Zogg (1962) recognised six species: three collected on ferns from Europe and the Mediterranean, namely Gl. adianti (Kunze) Petr. on Adiantum, and Gl. graphidioidea Rehm and Gl. normandina Rehm, both on Pteridium. Zogg also accepted Gl. sardoa Sacc. & Traverso from Populus in Europe, Gl. typhae (Fuckel) Sacc. on Typha, the latter described from Europe (Zogg 1962) and Chile (Lorenzo & Messuti 1998), and Gl. bambusae H. Zogg on Bambusa from Brazil. Since then, an additional three species have been described: Gl. gracilis Checa, Shoemaker & Umaña from Costa Rica (Checa et al. 2007), Gl. corticola A. Pande & V.G. Rao from India (Pande & Rao 1991), and Gl. clavatispora Steinke & K.D. Hyde from South Africa (Steinke & Hyde 1997). More recently, Barr (2009) recognised Gl. abietina Syd. on Abies from Idaho, and Gl. lapponica (P. Karst.) Sacc. on Arctostaphylosfrom Washington. A number of species in the key may be conspecific, since reported spore measurements are identical or nearly so.


Key to the species of Gloniella

  1. Ascospores 3-septate, shorter than 15 μm →  2
  2. Ascospores 3- or more-septate, and longer →  3


  1. Ascospores 10-15 x 5-6 μm; India →  Gloniella corticola Pande & Rao
  2. Ascospores 12-14 x 4-5 μm; on Typha, Europe →  Gloniella typhae (Fuckel) Sacc.


  1. On ferns in Europe →  4
  2. Not on ferns →  6


  1. Ascospores (2-)3(-4)-septate, (11-)15-20(-23) x 3-5 μm; on Adiantum, Europe →  Gloniella adianti (Kze.) Petr. 
  2. Ascospores (3-)5(-7)-septate, slightly longer →  5


  1. Ascospores (3-)5-septate, (15-)18-20(-22) x 4-5 μm; on Pteridium, Europe →  Gloniella graphidoideaRehm
  2. Ascospores 5-7-septate, (22-)25-27(-30) x 3-4 μm; on Pteridium, Europe →  Glonilla normandinaRehm


  1. Ascospores 1-3-septate, 36-39 x 10 μm; on Arctostaphylos, Western North America →  Gloniella lapponica(P. Karst.) Sacc. 
  2. Ascospores with more septa →  7


  1. Ascospores 3(-5) septate, 20-27 um x 7-8 μm; on Abies grandis, Western North America →  Gloniella abietina Syd.
  2. Ascospores with more septa →  8


  1. Ascospores (6-)7(-8)-septate, (16-)18-21(-26) x 6-7(-8) μm; on Populus, Europe →  Gloniella sardoa Sacc. et Trav.
  2. Ascospores larger →  9


  1. Ascospores (5-)6(-8)-septate, (18-)37(-41) x 10-11.5 µm, hyaline, smooth; on Avicennia marina, South Africa →  Gloniella clavatispora Steinke & K.D. Hyde
  2. Ascospores smaller, neotropical →  10


  1. Ascospores 6-7-septate, 32-37(-40) x 4-6 μm; Costa Rica →  Gloniella gracilis Checa, Shoemaker & Umaña
  2. Ascospores (5-)6-7-septate, (28-)32-38(-44) x (3-)4-8(-9) μm; on Bambusa, Brazil →  Gloniella bambusaeZogg

Ascospores of the genus Gloniella. From Zogg (1962), Pg. 76.

(1) Gl. sardoa, (2) Gl. bambusae, (3) Gl. typhae, (4) Gl adianti,

(5) Gl. graphidoidea, and (6) Gl. normandina.




Gloniella corticola Pande & Rao

Geobios new Reports 10: 63. 1990.


Pande & Rao (1991): “Hysterothecia superficial, simple, dark, hard, oval, elongate or linear, up to 1 mm or slightly more in length, opening by a narrow slit. Wall dark black, 30 – 40 μm thick; innermost layer made up of hyaline, thin-walled, flattened cells. Asci many, arising from base of the fruitbody, cylindrical-clavate, stipitate, bitunicate, apex rounded, 90 – 105 x 10 – 14 μm. Ascospores hyaline, cylindrical with broadly acute ends, mostly 3-septate, measuring 10 – 15 x 5 – 6 μm. Paraphysoids branched, anastomosing. Collected on dead twigs near Pusad, Maharashtra & Tamil Nadu region, India.”


Gloniella typhae (Fuckel) Sacc.

Syll. Fung. II, 1883, 768-769.

Glonium chusqueae Speg.

Rare. Europe (Germany). Collected from rotted leaves & culms of Typha angustifolia (Zogg, 1962).

Lorenzo & Messuti (1998): “Hysterothecia small, 0.29 – 0.58 x 0.08 – 0.15 mm, more or less gregarious, erumpent, linear; pseudoparaphyses scarce, but present; asci 36 – 46 x 14 μm, claviform, octospored; ascospores with three transverse septa at maturity, hyaline, with slight constriction at the mid-septum, elliptic, obtuse extremes, 13 – 14 x 4 μm. Spegazzini described this from Chusquea valdiviensis in Chile.”


Gloniella adianti (Kze.) Petr.

Ann. Mycol., 1931, 29, 120.


Rare. Mediterranean (Madera Islands). Collected from rotted fronds & stalks of Adiantum capillus-veneris.


Gloniella graphidoidea Rehm

Hedwigia, 1903, 42, 290.


Rare. Europe (Norm&y, France). Collected from dried fronds of Pteris aquiline.


Gloniella normandina Rehm

Ann. Mycol., 1912, 10, 394.

Rare. Europe (Norm&y, France). Collected from old fronds of Pteris aquiline.



Gloniella sardoa Sacc. et Trav.

Ann. Mycol., 1903, 1, 435.


Rare. Europe (Sardinia). Collected from old wood of Populus.


Gloniella gracilis Checa, Shoemaker & Umaña

Checa, Shoemaker & Umaña, Mycologia 99: 285. 2007.


Checa, Shoemaker & Umaña (2007): “Ascomata in lines on woody stems, semi-immersed, hysteriform, 1-2 x 0.3-0.5 mm, up to 0.5 mm high, smooth, lacking longitudinal ridges, glabrous. Sulcus central, 20-30 μm wide, lined with hyaline, thin-walled, rarely septate periphyses 10-15 x 1-1.5 μm. Upper wall thick, about 100 μm wide near sulcus, to 50-60 μm near upper margin, of melanized, solid, carbonaceous material obscuring earlier cellular structure; lateral wall externally of mycelium and wood fibers, 50-70 μm wide; internally of many layerrs of hyaline, thin-walled cells 10-15 x 2-5 μm, forming a layer about 30 μm wide. Paraphyses numerous, 1 μm wide, sparingly septate, without slime coating, withour guttules, exceeding the asci. Asci bitunicate, numerous, in a basal cluter from thick, hyaline, basal pseudoparenchyma layter, narrowly ellipsoid to clavate, 120-180 x 10-14 μm including long stalk; stalk ca. 60 μm long; asci containing eight overlapping, linearly tetraseriate ascospores. Ascopres terete, fusiform, slender, L/W 6.1, slightly curved to straight, 32-37(-40) X 4-6 μm, transversely 6- or 7-septate, in sequence (4):3:2:1:3:2:3, first-formed septum supramedia (0.40), constricted at first-formed septum , without dots at ends of septa, septa thick, third cell from apex enlarged, globoid, yaline, pale yellow, with one guttule in each central cell, smooth, witout sheath. Holotype: Costa Rica. Guanacaste: Tempisque, National Park Palo Verde, Palo Verde on branch”.


Gloniella bambusae Zogg

Zogg, 1962. Beiträge zur Kryptogamen. Schweiz, Band 11(3): 78.

Rare. Neotropics (Brazil). Collected from old bamboo canes. 1991 E.J. van der Linde from South Africa.

van der Linde (1992): “Fruiting bodies single or in groups, superficial or erumpent, elliptical to linear, tapering towards the ends, not branched, up to 2.0 x 0.2mm. Pseudoparaphyses hyaline, filiform, septate, swollen apically & branched to form an epithecium. Asci cylindrical, irregularly biseriate, 8-spored, 70 – 85 x 15 – 20um. Ascospores hyaline, fusiform, phragmosporous with 5 – 7 septa, middle cell often swollen, 30 – 35 x 5 – 8 um. Collected in 1991 #2330 (Tzaneen): Sirheni Cap near Shingwedzi (-AB), E. Grobbelaar 50958.”