New or Interesting Tropical Fungi.-1.

Abstract

The fungi recorded in this paper have in part been collected by the author in Uganda, while the remainder have been found in collections received for determination from the Belgian Congo, Kenya, India and Ceylon.MY RIANGIACEAE. 1. Molleriella Microglossae Hansf., sp. n.Ascomata epiphylla, in pilis folii parasitica, laxe dispersa, singula, plerumque terminalia, interdum lateralia, brunnea vel lutea, irregulariter subglobosa vel subdiscoidea, sublobata, usque ad 100 p diam. et 70 p alt., levia, glabra, in maturitate pallidescentia, deorsum in stipitem brevem contracta et in pilo folii in mycelio hyalino dissoluta ; paries unistratosus parenchymaticus, ex cellulis angulosis 8-12 p diam. compositus, in maturitate mucoso-dissolvens. Asci irregulariter unistratosi, aparaphysati, subglobosi, subsessiles, sursum late rotundati incrassati (-4 p), maturi circa 30 x 25 p, 8-spori. Sporae oblongae utrinque rotundatae, hyalinae, leves, medio 1-septatae, leniter constrictae, 13-15 x 6-7 p, cellula superiore lenissime crassiore, in maturitate 3-septatae et dubie muriformes.Hab. in foliis Microglossae volzibilis, Entebbe Road, Uganda, Hansfovd 3627 p.p.The ascomata are scattered loosely on single leaf-hairs on the upper side of the host leaf, usually single on each leaf-hair and terminal, occasionally lateral, attached by a short stalk-like portion closely adnate to the leaf-hair and composed of small dark parenchyma in a single layer, penetrating the cell-wall of the host and passing into a loose hyaline internal mycelium, very indistinct and closely adnate to the cell-walls of the leaf-hair. The ascomata are brown to yellow-brown, irregularly globose to subdiscoid, often more or less lobed and then with each lobe containing a single ascus. The wall of the ascoma consists of a single layer of brown angular parenchyma, which at maturity separates into single cells floating on a gelatinous ground substance and enclosing a group of asci arranged in a single irregular layer. At first the asci are separated by narrow bands of a few gelatinous hyaline cells which soon disappear. The asci are subglobose, broadly rounded and somewhat thickened around the apex, constricted below into a very short nodose stipe, with a wall of two layers ; the conglobate group of eight spores can be squeezed out of the ascus still surrounded by the intact inner ascus wall. The spores are at first 1-septate and slightly constricted in the middle, but later become 1-septate and doubtfully muriform ; ripe spores are strongly refractivc. Molleriella ErlangeaeHansi., sp. n.Ascomata hypophylla, irregulariter singulariterque dispersa, in pilis folii parasitica, terminalia vel plerumque lateralia, sessiles vel dubie stipitata, deorsum in pilo folii in hyphis paucis hyalinis dissoluta ; ascomata dilute brunnea, pallidescentia, irregulariter discoidea vel subgloboss, levia, usque ad 150 p diam. et 60-9Op alt. ; paries unistratosus, ex cellulis angulosis 6-lop diam. et circa 6 p cr. compositus, in maturitate cellulis secedentibus et in muco hyalino natentibus. Asci ...

Studies on foliicolous fungi – XV: New species, new records and a rare fungus

“…This species was known on the same host from Sri Lanka (Hansford, 1947) and is reported here for the first time from India (Bilgrami et al, 1991). , longus, septatus; asci pauci, ovati, bitunicati, octospori, 25-35x22-25µm; ascosporae oblongae, brunneae, conglobatae, uniseptatae, constrictae, 17-20x7-9µm, parietus glabrus.…”

Asterinales of India

“…A. vateriae differs from A. anisopterae in not forming polygonal meshes of hyphae, having smaller thyriothecia and in causing pathogenic effect on the host. It differs from A. fabelliferae in having distinctly larger ascospores (Hansford, 1947(Hansford, , 1949. Ascospores are smaller than A. hydnocarpi Hosag.…”

“…Thyriothecia scattered to grouped, discrete to often connate, orbicular, up to 215 µm in diameter, margin fringed, fringed hyphae join with the fringed hyphae of the other thyriothecia, carbonaceous black and stellately or irregularly splitted at the centre, radiating cells visible only towards the margin of the thyriothecia; asci few to many, ovate to globose, octosporous, 30-35 µm in diameter; ascospores conglobate, oblong, brown, 1-septate, slightly constricted at the septum, 20-23 × 10-12 µm, wall smooth. (Hansford, 1947). This is the only species known on this host genus.…”

“…Appressoria one sided or alternately arranged, unicellular, 2-4 deeply lobed, brown, straight or bent, 6.6-9.9 × 3.3-8.2 µm; Thyriothecia many, scattered, superficial, orbicular, 108-181.5 µm diam., attached with free mycelium, dimidiate with radiate scutellum, stellately dehiscing at first, subsequently developing in to an aperture, dark brown, convex, hymenium simple, margin subcrenate; Asci many, arranged towards the periphery of the fruit body, round to obovate, sessile, 8-spored, 23.1-33 × 19.8-23 µm, paraphysate; Ascospores crowded, fusiformelliptical, uniseptate , constricted at the septum, upper cell slightly conic, brown, smoothwalled, 16.5-19 × 6.6-7.4 µm. (Hansford, 1947). Subsequently, Patil & Thite (1978) …”

“…; ascospores conglobate, brown, uniseptate, constricted at the septum, 20-22 × 11-13 µm, wall smooth. This species was known on the same host from Sri Lanka (Hansford, 1947 Asterina murrayae Hansf. known on this host genus from Srilanka and India (Hansford, 1947;Hosag.…”