Van Hook, J.M.

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141Indiana Fungi—III.J. M. Van Hook.The fungi recorded in the folloAving list, were for the most part collectedfrom 1911 to 1914. Two of these years (1913 and 1914) were so dry that thecollecting of certain groups of fungi was practically abandoned. The year1915 was a record one for the growth of all kinds of fungi and large collectionswere made for future study.A limited number of fungi already recorded occur herein, as these havebeen found on new hosts.Great care has been exercised in determining the host species, a thing toomuch neglected by collectors in the past.Most of the species have been collected in Monroe county. Where thename of the county is not given, it is understood that the specimen wasfound in Monroe county. All collections Avere made by myself unless other-wise specified.PHYCOMYCETES.Albugo bliti (Biv.) 0. Kuntze. On livine- leaves of Amaranthus rofrn-flexus. Common. Monroe county, September, 1915.Albugo ipomoea-panduratae (Schw.) Swingle. On leaves and stems ofIpomoea hederacea. Monroe county, August 2, 1915.Chaetocladium jonesii Fresenius. Parasitic on Mucor in culture, in thegreenhouse. December 28, 1912. C. E. O'Neal.Piptocephalis freseniana De Bary. On Mucor. Greenhouse, December28, 1912. O'Neal.Phycomyces nitens (Ag.) Kze. On horse dung lirought into greenhouse^January 7, 1913. O'Neal.Plasmopara viticola (B. & C) Bed. & DcToni. On leaves of Vitis cordi-folia. July, 1915. Very destructive.Thajnnidiuni elegans Link, ()n ilung in greenhouse. December 22. 1912.142BASIDIOMYCETES.USTILAGINEAE.Ustilago neglecta (Niessl.) Rab. On Chaetochloa, Montgomery county,1913. Flora Anderson.Ustilago rabenhorstiana (Kuehn.) Hedw. On S.yntherisma sanguinale.Alontgomery county, 191.3. Anderson.TlLLETIINEAE.EIntyloma lobeliae. Farlow. On living leaves of Lobelia inflata. OctoberIG, 191."). p'orms discolored (light yellow) spots on the upper surface of theleaves.Urocystis anemones (Pers.) Wint. On Hepatiea acutiloba. Browncounty. Ma.y 16, 1915. Donaghy. University Farm, Lawrence county,June, 1915.POLYPORCEAE.Spongipellis occidentalis Murr. On dead oak log. Helmsburg, Browncounty. May 16, 1915. Donaghy.S])()iigi|)cllis utiicolor (Schw.) IVliirr. On .\ccr, Cascades, fall of 1914.Donaghy..\(;ai{I(A('Eak.Crepidotus fuhotonicntosus I'k. On decayed log. Brown county, October24, 1914.LVCOI'EKDINKAI:.Boxistclia ohiensis Mcjrg. On llie ground in an o))cn Held. Xoxcmbct',16, 1914. Donaghy.ASCOMYCP^TES.H KLVKM.I.VKAi;.Ilil\clhi clastica Hull. On I lie ground. l'ni\ crsilN Water Works, May19, 19!."). Ibii-vcy Stork.PeZIZIiNEAE.Pseudopeziza medicaginis (Lib.) Sacc. On alfalfa. Autumn of 1912.Sarcoscypha occidentalis Schw. On buriefl sticks. University WaterWorks, May 19, 1915. Stork.143Hysteriineae.Hysteriographium gloniopsis Gerard. On dead wood of Aeer sacchari-num. Huckleberry Hill, November 25, 1910.Hysteriographium mori (Schw.) Rehm. On rails of Liriodendron tulipif-era and Juglans nigra. East campus, October 2(), 191.5.PVRENOMYCETINEAE.PERISPORIALES.Erysiphe cichoracearum D. C. On living leaves of Plantago rugelii.Vernonla noveboraeensis, Ambrosia triflda and Solidago. Summer of 1911.Sutton.Mierosphaera alni (D.. O.) Wint. On leaves of Platanus occidentalis.Summer of 1912. Sutton.Mierosphaera elevata Burr. On leaves of Catalpa speciosa. Autumn of1911. Sutton.Phyllaetinia corylea (Pers.) Karst. On Fraxinus sambucifolia, Ladoga,Montgomery county, September 16, 1913. Anderson.Sphaerotheca castagnei Lev. On living leaves of Taraxicum officinale,1911. Sutton.Uneinula necator (Schw.) Burr. On eiUtivated grapes. September, 1912.Uneinula adunea Lev. On leaves of Salix nigra, autumn of 1911. Sutton.HYPOCREALES.(iil>berella saubinetii (Mont.) Saec. On wheat, 1911.SPHAERIALES.Hypoxylon annulatum (Schw.) Mont. On Fraxinus americana. January17, 1914. Ramsey.Hy]joxylon effusum Nitschke. On Fagus ferruginea, March 4, 1909;Quereus, November 20, 1913. Ramsey.Hypoxylon perforatum (Schw.) Fr. On Juglans nigra. January 17,1914. Ramsey.Massaria inquinans (Tode) Pr. On Acer. December -8, 1911.Rosellinia aquila (Fr.) DeNot. On Acer. March 6, 1902. Mutchler;on Juglans, Unionville, 1911; on Ostrya, November 20, 1913, and on Fagusferruginea, December 10, 1913. Ramsey.144Rosellinia glandiformis E. & E. On Liriodendron tulipifera, 1907; onJuglans, November 20, 1913; and on Fraxinus, Boone county, January 17,1914. Ramsey.Rosellinia ligniaria (Grev.) Nke. On Ostrya \drginica, January 28, 1914,J. M. V. & Ramsey; on Fraxinus, Boone county, March 28, 1914. Ramsey.RoselUnia meduUaris (Wallr.) Ces. & DeNot. On Cercis canadensis,February 4, 1911; on Juglans cinerea, 1914. Ramsey.Rosellinia mutans (Cke. & Pk.) Sacc. On Juglans, 1914. Ramsey.Rosellinia pulveracea (Ehr.) Fckl. On Carpinus caroliniana and Platanusoecidentalis, November 20, 1913; on the same hosts in Boone county, De-cember 18, 1913. Ramsey.Rosellinia subiculata (Sehw.) Sacc. On Liriodendron tulipifera, 1911.On Quercus, 1914, J. M. V. & Ramsey.Venturia pomi (Fr.) Wint. On leaves and fruit of Pjtus malus, July 19,1912. Common.Xylaria corniformis Fr. On rotten Acer. Harrodsburg, August 7, 1915.FUNGI IMPERFECT!.Sphaeropsidales.Ascocliyta iiiali E. & E. On living leaves of I'yrus luulus, 1911. SuHoii.Aseochyta rhei E. & F.. On living leaves of Hlicum rliapoiiticuin. Sej)-tember, 1912.Cieinobolus cesatii DeBary. Parasitic on Erysiphe cichoraeearum onleaves of Rudbeckia or Helianthus. Campus, October 5, 1915.Darluca filum (Biv.) Cast. Parasitic on Phragmidium potentillae andUredo biglowii, 1911. Sutton.Phoma limbalis Passer. On leaf veins of Platanus oecidentalis, 1912.Phyllosticta celtidis Ell. & Kell. On leaves of Celtis oecidentalis, October5, 1915. These leaves were also affected with a leaf mite. Spores of fungus,bacteria-like, 2 to 3 by 1 micron.Phyllosticta fraxini Ell. & Mart. On leaves of Cornus florida, autumnof 1912. Spores, 4 by 9.5 microns. On leaves of Fr&.xinus americana,Unionville, October 3, 1914. J. M. V. & Paul Weatherwax.Phyllosticta grossulariae Sacc. On leaves of Ribes cynosbati, October3, 1914. J. M. V. & P. W.Phyllosticta hammameUdis Pk. On living leaves of Hammamelis vir-145giniana, Campus, October 5, 1915. Associated -with Pestalozzia funereaDesm. Peck reports Phyllosticta eonsocia Pk. as being associated with thisPestalozzia and describes the spot as the same and the Phyllosticta as thecause. However, P. eonsocia is described as having six cells with fourmiddle ones colored and as being 30 to 35 microns long; setae, 22.5 to 27.5long. Our spores are about 25 microns long with short setae. Spores, five-(ielled, the three inner being colored. This Phyllosticta is very similar ifnot identical with P. sphaeropsidea E. & E. (Bull. Torr. Bot. Club. 18S3,p. 97.) Reported on x\esculus hippocastanum.Phyllosticta kalmicola (Schw.) E. & E. On living leaves of Kalmialatifolia, one-half mile northeast of Borden, Clark county, Februarj' 20,1915.Phyllosticta linderae E. & E. On Lindera benzoin, Brown county, July,1912.Phyllosticta sambuei Desm. On leaves of Sambucus canadensis. Campus,October 5, 1915. The pyenidia are described as being very minute. In ourspecimens, they measure from 90 to 200 microns mth sjjores 4 to 7 by 2 to2§ microns,Phyllosticta sambucicola Kalchbr. On the same host as the above andassociated with it as was also Cercospora sambucina and a Septoria. Thepyenidia are 50 to 90 microns and spores 2^ to 5 microns. The spores aresubglobose. Kalchbrenner describes them as being very minute.Septoria evonymi Rabh. On Evonymus atropurpurius, Campus, October5, 1915. Our species is undoubtedly identical with the one described byRabenhorst, though differing somewhat. The following is a description ofour fungus: Spots epiphyllous, 3 to 10 microns in diameter or bj- confluence,covering large areas, irregular in shape, often limited by veins making them•angular in outline, olive brown, bounded by a dark purplish line, lightercolored on the lower surface of the leaf; pycnidia'75 to 125 microns in diam-eter, black, protruding and with a large irregular opening; spores 15 to 30by 2 to 3 microns, for the most part one-septate, straight, crescent-shapinlor irregularly curved.Septoria helianthi Ell. & Kell. On Helianthus annuus, autumn of 1912.Septoria lactueae Pass. Common on Lactuca seariola, Harrodsburg,August 7, 1915. Spores filiform, 20 to 35 by 1^ to 2 microns.Septoria mimuli Wint. On leaves of Mimulus alatus, summer of 1911.Sutton.5084—10146Septoria Oenothera West. On Oenothera ]>iennis, Harrodsbiirg, August7, 1915.Septoria i)olygonorum Desm. On Polygonum persiearia, July 29, 1915.This fungus was very common and \ery destructive to its host throughoutthe summer. It varies slightly from the description as follows: Spots2 to 8 nmi. in diameter. Leaf fades to yellow, curls, dries on the jilant or fallsto the ground. Some spores exceed 25 microns in length.Septoria rubi West. On cultivated raspberries. Sept(>ml)('r, U)V2. Alsocommon on blackberries.Septoria scrophulariae Pk. On Scrophularia nodosa or mar\landica.Summer of 1911. Sutton.Septoria verbascicola B. & C On Verbascum blattaria. autumn of 1912.Sphaeropsis asiminae E. & E. On dead twigs of Asimina triloba. Boonecounty, December, 1913. Ramsey.Mki.antoxi.m.ks.( "ylindrosporiuiii ('aijscllac E. A; E. On leaves of ('ai)sella hur.sa-pastoris,1911. Sutton.( "ylindn)si)()riuMi i)adi Karst. On i'runus serotina, siiinincr of 1911.Sutton.(iloeosporium caryae Ell. tV: Dear. Common on icaxcs of Carya alba,Harrodsburg, August 7, 1915.Gloeosporium intermedium Saec, var. i)oin.settiae Sacc. On diad stemsof Poinsettia pulcherrima, greenhouse, March 16, 1915. Plants grown fromFlorida stock.Marsonia juglandis ( Lib.) Sacc. On leaves of Juglans cinerea, Helmsburg,Brown county, July, 1912; Unionville, Monroe county, October :i, 1914.On leaves of Juglans nigra, Unionville, October '.\, 1914. On leaves of .luglanssieboldiana. Campus, Octol)er 5, 1915.Marsonia martini Sacc. &. Ell. On leaves of (^iiercus acuiniiiala, Harrods-burg, July 7, 1915.P(;stalozzia funerea Desni. On leaAcsof iiaiiwiiaiiiclis \irgiiiiana, Campus,October 5, 1915.IlviMIOMVCETE.S.(^•rcospora ampelopsidis Pk. On living leaves of Ampelopsis quinque-folia, October 5, 1915. The conidiophores of this fungus measure M) to 112by 5 to G microns and are 2 to 4 septate; the spores are 25 to 125 by to 8147microns and arc 4 to 9 septate. There seems to be no doubt as to the identityof the fungus as the remainder of the description corresponds admirably.Cercospora bartholomaei Ell. & Kell. On living leaves of Rhus glabra,summer of 1911. Sutton.Cercospora condensata Ell. & Kell. Summer of 1911. Sutton.Cercospora elongata Pk. On Dipsacus sylvestris, Harrodsburg. July 7,1915. Spores attain a length of 275 microns. Peck gives 50 to 150 microns.Cercospora kellermani Bubak. On leaves of Althaea rosea, October 5,1915. This species seems too closely related to C. malvarum Sacc. and toC. althaeina Sace. . Conidiophores to 110 microns long and spores from 20to 152 microns.Cercospora plantaginis Sacc. On leaves of Plantago rugelii. Campus,October 5, 1915. Very common. Forms brown spots. Conidiophores asmuch as 250 microns long. Spores, 75 to 175 microns long.Cercospora rhoina E. & E. On leaves of Rhus glabra, Unionville, October3, 1914. J. M. V. & P. W.Cercospora ribis Earle. On cultivated Ribes rubrum, autumn of 1912.Very severe on its host.Cercospora rosicola Pass. On Rosa Carolina, Campus, October 2(5, 1915.The description of this species gives the measurement of the conidiophores20 to 40 by 3 to 5 microns and spores, 30 to 50 by 3i to 5 and 2 to 4-septate.Our conidiophores are 20 to 75 by 4 to 5 and spores 30 to 80 by 5 to 7 micronsand are mostly 3-septate. The very dark hemispherical base from whichthe conidiophores arise, is verj- characteristic of this species.Cercospora sambucina Ell. & Kell. On leases of Sambucus canadensis.Campus, October, 1915.Cercospora septorioides E. & E. On leaves of Rubus villosus, Harrods-burg, August 7, 1915. This species has many characters which place itnear C. rubi Sacc, C. rubicola Thuem. and C. rosicola Pass. The spots arevery characteristic and the r('S('ml)lancc of llie spores to those of a Septoriais very striking.Cercospora toxicodcnth'i (('uri.) K. A; K. On k-aves of J{hus to.xicodeu-dron, Harrodsl)urg, August 7, 1915.Haplograjjliium apiculatum Pk. On l('a\('s of Ilaininamelis virginiana,Griffey Creek, October 3, 1914.Macrosporium catalpae Ell. & Mart. On leaves of^Catalpa speeiosa.148Campus, 1911 and 1912. Common. This fungus seems to follow the injuryproduced by an insect—a ver.y characteristic brown spot.Macrosporium sarciniaeforme Cav. On Trifolium pratense, Campus,October 0, 1915. The swollen nodes of these eonidiophores somewhat re-semble those of Polythrineium trifolii so common on cloA'er.Macrosporium solani Ell. &. ]Mart. Common on Datura stramonium,Griffey Creek and Harrodsburg, .July and August, 1915.Piricularia grisea (Cke.) Sacc. On leaves of Panicum sangumale, autumnof 1915. Very common every year.Tubercularia vulgaris (Tode.) Meckl. On twigs of Asiniiiia tril()l)a,Boone county, December, 1913. Ramsey.(In conforming with the original i)lan. the following Myxomycetes archere appended, though out of the sphere of fungi.)MYXOMYCETES.Arcyria incarnata Pers. On rotten wood. (Iriffey Creek, October 20,1914. Donaghy.Diderma crustaceum Pk. On dead leaves, Brown county. October 24,1914. Donaghy.Enteridium splcndcns Morg. On rotten wood. Brown county. Octolx-r24, 1914.Lycogola flavo-fuscum (Ehr.) Host. On sawed end of mai)lc log, Xovein-ber 16, 1914. Donaghy.Mucilago spongioa (Ley.ss.) MOrg. On stems of living weeds, Xoveml)er12, 1914. Donaghy.Physarum cinereum (Batsr-h.) Pers. On li\ing grass. Campus, .June 4.1915. Mottier.Stemonitis caroliniana Macbr. On rotten wood, 1915.Stemoniti.s morgani Pk. On rotten wood, (iriffey Creek, October 29,1914. Donaghy. Also on dead nuiple log, Cam])us, .June 1, 1915. Donagiiy.Stemonitis nigrescens Rex. (ireenhouse under bottom of i)alin tub.Sporangia on the sand. May 20, 1915.'ribnadoclic |)()l>c('j)liala (Scliw.) .Macl)r. On liark of fallen cliu. K'mi-ning over moss and l)ark. (Irit'fcy ("reck, June 5, 1915.Indiana University,January, 1916.

Indiana Fungi -III

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Indiana Fungi -III

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