Displaying 1 - 49 out of 49 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Pezicula corylina J.W.Groves | D. S. Welch s.n. | Jun 1884 | United States of America | New York | Adirondack Mts. | — | 2974038 |
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| Hypomyces lactifluorum (Schwein.) Tul. & C.Tul. | D. S. Welch s.n. | Aug 1920 | United States of America | New Hampshire | Center Tuftonboro | — | 2952611 |
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| Hypomyces lactifluorum (Schwein.) Tul. & C.Tul. | D. S. Welch s.n. | Jul 1921 | United States of America | New York | Candor | — | 2952631 |
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| Aleurodiscus amorphus Pers. | D. S. Welch s.n. | 07 Sep 1921 | United States of America | New York | Near State Camp, 4 miles… | — | 1986289 |
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| Phyllactinia guttata (Wallr.:Fr.) Lév. | D. S. Welch 318 | 20 Sep 1921 | United States of America | New York | Tompkins Co. Taughannock Gorge | — | 2944082 |
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| Uncinula circinata Cooke & F.Peck | D. S. Welch 320 | 20 Sep 1921 | United States of America | New York | Taughannock Gorge, Ithaca | — | 2945470 |
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| Uncinula necator (Schwein.) Burrill | D. S. Welch 317 | 20 Sep 1921 | United States of America | New York | Taughannock Gorge, Ithaca | — | 2945978 |
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| Uncinula necator (Schwein.) Burrill | D. S. Welch 321 | 24 Sep 1921 | United States of America | New York | West Hill, Ithaca | — | 2945977 |
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| Arcyria globosa Schwein. | D. S. Welch s.n. | 04 Jul 1922 | United States of America | New York | Coy Glen, 1-50, Cayuga Lake… | — | 02630435 | ||
| Hypocrea gelatinosa (Tode) Fr. | D. S. Welch 501 | 01 Oct 1922 | United States of America | New York | Labrador Lake | — | 2949319 |
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| Cenangium acuum Cooke & Peck | D. S. Welch C159 | Mar 1927 | United States of America | New York | Tompkins Co. Cornell University, Forestry… | — | 3417665 |
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| Taphrina caerulescens (Desm. & Mont.) Tul. | D. S. Welch A. J. Mix Taphrina T-814 - Herb. D. S. Welch 819 | 18 Aug 1929 | United States of America | New York | Tompkins Co. Poultry Woodlot | — | 01920402 | ||
| Uncinula adunca (Wallr.) Sacc. | D. S. Welch 1061 | 01 Jan 1932 | United States of America | Louisiana | Baton Rouge | — | 2945280 |
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| Pezicula alni (Fuckel) Rehm | D. S. Welch s.n. | 01 Sep 1932 | United States of America | New York | near Newvombe, Rich Lake | — | 02973866 |
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| Cenangium furfuraceum (Roth) De Not. | D. S. Welch s.n. | 01 Sep 1932 | United States of America | New York | near Newcomb, Rich Lake | — | 3417791 |
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| Aleurodiscus amorphus Pers. | D. S. Welch s.n. | 09 Sep 1932 | United States of America | New York | Essex Co. Newcomb. | — | 01945456 |
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| Peniophora mutata (Peck) Bres. | D. S. Welch White Herb.2102 | 21 Aug 1935 | United States of America | New York | Tompkins Co. Ithaca. Arnot Forest. | — | 1982318 |
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| Phyllactinia guttata (Wallr.:Fr.) Lév. | D. S. Welch s.n. | Oct 1935 | United States of America | New York | Schuyler Co. Arnot Forest | — | 2944083 |
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| Hypochnicium bombycinum (Sommerf.) Erikss. | D. S. Welch s.n. | 21 Oct 1935 | United States of America | New York | Tompkins Co. Arnot Forest, Ithaca. | — | 01992911 |
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| Hypochnicium bombycinum (Sommerf.) Erikss. | D. S. Welch s.n. | 21 Oct 1935 | United States of America | New York | Arnot Forest, Ithaca. | — | 1992912 |
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| Plicatura crispa (Pers.) Rea | D. S. Welch s.n. | 21 Oct 1935 | United States of America | New York | Tompkins Co. Arnot Forest, Ithaca. | — | 1978512 |
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| Plicatura crispa (Pers.) Rea | D. S. Welch 25051 | 21 Oct 1935 | United States of America | New York | Arnot Forest, Ithaca | — | 1978513 |
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| Pellicularia pruinata (Bres.) D.P.Rogers | D. S. Welch a.n. | 21 Oct 1935 | United States of America | New York | Tompkins Co. Ithaca. Arnot Forest. | — | 1988047 |
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| Chondrostereum purpureum (Pers.:Fr.) Pouzar | D. S. Welch s.n. | 16 Nov 1935 | United States of America | New York | Arnot Forest, Ithaca. | — | 01987911 |
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| Holwaya gigantea (Peck) Durand | D. S. Welch 25044 | 16 Nov 1935 | United States of America | New York | Tompkins Co. Arnot Forest | — | 3419936 |
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| Stereum sanguinolentum (Alb. & Schwein.:Fr.) Fr. | D. S. Welch 2153 | 16 Nov 1935 | United States of America | New York | Tompkins Co. Ithaca. | — | 1991123 |
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| Taphrina caerulescens (Desm. & Mont.) Tul. | D. S. Welch A. J. Mix Taphrina T-813 - Herb. D. S. Welch 1286 | 31 Jul 1936 | Canada | Ontario | Muskoka Reg. Mun. Muldrew Lake | — | 01920401 | ||
| Nectria | D. S. Welch s.n. | 05 May 1937 | United States of America | New York | Tompkins Co. Library slope, South… | — | 2954465 |
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| Aleurodiscus oakesii Berk. & M.A.Curtis | D. S. Welch s.n. | 01 Nov 1946 | United States of America | New York | Schuyler Co. Arnot Forest. | — | 1986590 |
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| Hymenochaete tabacina (Sowerby:Fr.) Lév. | D. S. Welch 2102 | 01 Nov 1946 | United States of America | New York | Schuyler Co. Arnot Forest | — | 3029902 |
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| Bombardia fasciculata Fr. | D. S. Welch 1365 | 02 Nov 1946 | United States of America | New York | Schuyler Co. Arnot Forest | — | 03380250 |
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| Chaetosphaeria pannicola (Berk. & M.A.Curtis) Sacc. | D. S. Welch 1364 | 02 Nov 1946 | United States of America | New York | Schuyler Co. Arnot Forest | — | 03380458 |
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| Holwaya gigantea (Peck) Durand | D. S. Welch s.n. | 02 Nov 1946 | United States of America | New York | Schuyler Co. Arnot Forest | — | 3419951 |
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| Nectria galligena Bres. | D. S. Welch s.n. | 02 Nov 1946 | United States of America | New York | Schuyler Co. Arnot Forest of… | — | 2957436 |
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| Cryptosphaerella | D. S. Welch 1998 | 28 Aug 1947 | United States of America | Idaho | Ludlow Creek, Coeur d'Alene Nat'l… | — | 03380876 |
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| Cucurbidothis pithyophila (J.C.Schmidt & Kunze) Petr. | D. S. Welch s.n. | 10 Sep 1947 | United States of America | Idaho | Coeur d'Alene Natl. Forest | — | 02980791 |
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| Atropellis pinicola Zeller & Goodd. | D. S. Welch CUP37531 | 12 Sep 1947 | United States of America | Idaho | Sand Creek, Deception Creek Experimental… | — | 03416562 |
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| Nectria galligena Bres. | D. S. Welch s.n. | 02 Nov 1947 | United States of America | New York | Schuyler Co. Arnot Fores of… | — | 2957435 |
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| Durella | D. S. Welch 2361 | 06 Aug 1948 | United States of America | Idaho | Sand Creek plot, Coeur d'Alene… | — | 03419010 |
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| Hypocrea aurantiaca Peck | D. S. Welch 2793 | 01 Oct 1948 | United States of America | New York | Tompkins Co. Arnot Forest | — | 2948829 |
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| Heterobasidion annosum (Fr.) Bref. | D. S. Welch | 15 Oct 1948 | United States of America | New York | Cornell Plantations, Varna=Dryden Road, near… | — | 1945190 |
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| Nectria episphaeria (Tode:Fr.) Fr. | D. S. Welch s.n. | 21 Oct 1948 | United States of America | New York | Schuyler Co. Arnot Forest | — | 2956788 |
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| Oidium ramosissimum (Berk. & M.A.Curtis) Linder | D. S. Welch s.n. | 01 Nov 1949 | United States of America | New York | Tompkins Co. Cornell Campus, Ithaca. | — | 03608034 |
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| Dicranum rugosum Hoffm. ex Brid. | D. S. Welch 11039 | 17 Jul 1950 | United States of America | Minnesota | Clearwater Co. Lake Itasca State… | — | 340379 | ||
| Pseudonectria pachysandricola B.O.Dodge | D. S. Welch 3582 | Jun 1952 | United States of America | New York | Tompkins Co. near Stimson Hall,… | — | 02960536 |
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| Sphaeropsis sapinea (Fr.:Fr.) Dyko | D. S. Welch | 12 Jun 1952 | United States of America | New York | Farmingdale, Long Island. | — | 292361 | ||
| Graphium ulmi N.V.Schwarz | D. S. Welch T14 | 1956 | United States of America | New York | Monroe Co. | — | 266961 | ||
| Astragalus beckwithii var. sulcatus Barneby | D. S. Welch 24624 | 22 Jun 1990 | United States of America | Idaho | Lemhi Co. Hwy 63, ca.… | — | 01244600 |
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| Hypomyces lateritius (Fr.:Fr.) C.Tul. | D. S. Welch s.n. | s.d. | United States of America | Massachusetts | Middlesex Co. | — | 2952922 |
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