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Search the Collection

USDA Nematode Collection was established in June 1960 By A. Morgan Golden. It is currently directed and curated by Dr. Benjamin Waldo with technical support from Steve Rogers. It is one of the largest and most valuable nematode collections in existence with over 49,200 permanent slides and vials, and a total repository of nematode specimens reaching several million. It includes over 1900 type specimens, and the valuable and irreplaceable collections of Cobb-Steiner, Thorne, and others. Nematodes from worldwide and domestic sources are represented in the collection. The Collection and database provide important information for reference purposes and taxonomic research by U.S. and foreign scientists and a permanent repository for type and other specimens. This website provides a portal to search those specimens that have been cataloged to date and provides data on nematode hosts, occurrence, and distribution.

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Displaying 33976 - 34000 of 41939

Entry Number: 33983

Nematode
Eudorylaimus sp.
Host
(Soil) in/on Soil
Origin
Colombia
Collector
via Hernan Ruiz (APHIS)
Date Received
2004 Apr 14
Disposition of Sample
Records only; material discarded

Entry Number: 33984

Nematode
Ditylenchus dipsaci
Host
Dipsacus sp. (Teasel Crowns) in/on Stem
Origin
USA Oregon Molalla
Collector
W. D. Courtney via G. Steiner
Date Collected
1942 Oct 15
Date Received
1942 Oct 21
Disposition of Sample
Specimens to USDANC (General)
Slides
G-13826 to G-13904 (cross sections)

Entry Number: 33985

Nematode
Aphelenchoides olesistus
Host
(Fern) in/on Plant
Origin
USA New York Botanical Gardens, New York
Collector
B. O. Dodge via G. Steiner
Date Received
1935 Jan 21
Disposition of Sample
Specimens to USDANC (General)
Slides
G-13905 (head face view)

Entry Number: 33986

Nematode
Tylenchus dipsaci
Host
Plantago maritima (Plantain (Maritime)) in/on Leaves
Origin
USA Oregon Yahatz (coast), (Corvallis, at Yahatz on the Oregon by Bailey.)
Collector
F. P. McWhorter via G. Steiner
Date Received
1931 Jul 02
Disposition of Sample
Specimens to USDANC (General)
Slides
G-13906 to G-13925 (cross sections)

Entry Number: 33987

Nematode
Hoplolaimus eucharidis n. sp.*
Host
Eucharis grandiflora (Eucharis) in/on Root
Origin
USA Florida Gotha
Collector
Julian Nally of Nally & Smith via G. Steiner
Date Received
1943 Jan 18
Disposition of Sample
Specimens to USDANC (General)
Slides
G-13926 to G-13965 (cross sections)

Entry Number: 33988

Nematode
Rotylenchulus reniformis
Host
Ipomoea batatas (Sweetpotato) in/on Root
Origin
USA Maryland Beltsville (greenhouse)
Collector
J. H. Machmer via G. Steiner
Date Received
1942 Aug 14
Disposition of Sample
Specimens to USDANC (General)
Slides
G-13966 to G-13982 (cross sections)

Entry Number: 33989

Nematode
Rotylenchus sp.
Host
Ambrosia trifida (perhaps) (Ragweed) in/on Root
Origin
USA Maryland Beltsville (greenhouse)
Collector
J. R. Christie via G. Steiner
Date Received
1942 Jun 10
Disposition of Sample
Specimens to USDANC (General)
Slides
G-13983 to G-13985 (cross sections)

Entry Number: 33990

Nematode
Rotylenchulus sp.
Host
Lycopersicon esculentum (Tomato) in/on Root
Origin
USA Maryland Beltsville (greenhouse)
Collector
C. A. Brooks via G. Steiner
Date Received
1942 Oct 02
Disposition of Sample
Specimens to USDANC (General)
Slides
G-13986 to G-13996 (cross sections)

Entry Number: 33991

Nematode
Nacobbus dorsalis
Host
Erodium cicutarium (Heronbill) in/on Root
Origin
USA California Kern Co.
Collector
M. Allen via G. Thorne via G. Steiner
Date Received
1943 May 20
Disposition of Sample
Specimens to USDANC (General)
Slides
G-13997 to G-14016 (cross sections)

Entry Number: 33992

Nematode
Tylenchorhynchus fragaria n. sp.
Host
Fragaria sp. (Strawberry) in/on Root
Origin
USA Washington Sumner
Collector
W. D. Courtney via G. Steiner
Date Collected
1942 Mar 10
Date Received
1942 Mar 16
Disposition of Sample
Specimens to USDANC (General)
Slides
G-14017 to G-14036 & G-14728 to G-14736 (cross sections)

Entry Number: 33993

Nematode
Tylenchus costatus
Host
Fragaria sp. (Strawberry) in/on Root
Origin
USA Washington Sumner
Collector
W. D. Courtney via G. Steiner
Date Received
1942 Mar 16
Disposition of Sample
Specimens to USDANC (General)
Slides
G-14017 to G-14036 & G-14728 to G-14736 (cross sections)

Entry Number: 33994

Nematode
Dorylaimus sp.
Host
Citrus sp. (Citrus) in/on Root
Origin
USA Florida Appoka
Collector
J. Masek via G. Steiner
Date Received
1942 Sep 15
Disposition of Sample
Specimens to USDANC (General)
Slides
G-14037 to G-14048 (cross sections)

Entry Number: 33995

Nematode
Tripyla sp.
Host
Citrus sp. (Citrus) in/on Root
Origin
USA Florida Appoka
Collector
J. Masek via G. Steiner
Date Received
1942 Sep 15
Disposition of Sample
Specimens to USDANC (General)
Slides
G-14049 to G-14056 (cross sections)

Entry Number: 33996

Nematode
Aphelenchoides olesistus
Host
Lilium longiflorum (Easter lily) in/on Leaves
Origin
USA District of Columbia Washington, DC
Collector
via G. Steiner
Date Received
1945 Mar 07
Disposition of Sample
Specimens to USDANC (General)
Slides
G-14057 to G-14076 (cross sections)

Entry Number: 33997

Nematode
Heterodera marioni
Host
Pinus lambertiana (Sugar pine) in/on Root
Origin
USA California Tuolumne Co.
Collector
via G. Steiner
Date Received
1939 May
Disposition of Sample
Specimens to USDANC (General)
Slides
G-14077 to G-14115 (cross sections)

Entry Number: 33998

Nematode
Heterodera marioni
Host
Hemerocallis sp. (Daylily) in/on Root
Origin
USA Florida Winter Park
Collector
Wyndham Hayward (Grower) via G. Steiner
Date Received
1937 Sep 01
Disposition of Sample
Specimens to USDANC (General)
Slides
G-14116 to G-14142 (cross sections)

Entry Number: 33999

Nematode
Heterodera marioni
Host
Vigna sinensis (Cowpea var. Whippoorwill) in/on Root
Origin
USA Virginia Arlington
Collector
E. E. Clayton via G. Steiner
Date Received
1937 Dec 21
Disposition of Sample
Specimens to USDANC (General)
Slides
G-14143 to G-14154 (cross sections)

Entry Number: 34000

Nematode
Heterodera marioni
Host
Cassia tora (Coffeeweed) in/on Root
Origin
USA Texas Huntsville
Collector
S. R. Warner, J. M. Watkins via C. Thom & L. T. Leonard via G. Steiner
Date Collected
1941 Nov 03
Date Received
1941 Nov 07
Disposition of Sample
Specimens to USDANC (General)
Slides
G-14155 to G-14210 (cross sections)

Entry Number: 34001

Nematode
Heterodera marioni
Host
Senecio cineraria (Ragwort/Silver Groundsel) in/on Root
Origin
USA Maryland Beltsville
Collector
E. M. Buhrer via G. Steiner
Date Received
1942 Sep 01
Disposition of Sample
Specimens to USDANC (General)
Slides
G-14211 to G-14237 (cross sections)

Entry Number: 34002

Nematode
Heterodera marioni
Host
Begonia sp. (Begonia) in/on Stem
Origin
USA Maryland Beltsville
Collector
J. H. Machmer via G. Steiner
Date Received
1942 Sep 02
Disposition of Sample
Specimens to USDANC (General)
Slides
G-14238 to G-14277 (cross sections)

Entry Number: 34003

Nematode
Heterodera marioni
Host
Geranium sp. (Rose geranium) in/on Root
Origin
USA Maryland Beltsville
Collector
E. M. Buhrer via G. Steiner
Date Received
1942 Oct 08
Disposition of Sample
Specimens to USDANC (General)
Slides
G-14278 to G-14317 (cross sections)

Entry Number: 34004

Nematode
Heterodera marioni
Host
Nicotiana tabacum (Tobacco) in/on Root
Origin
USA Virginia Arlington
Collector
E. E. Clayton via G. Steiner
Date Received
1941 Dec 19
Disposition of Sample
Specimens to USDANC (General)
Slides
G-14318 to G-14337 (cross sections)

Entry Number: 34005

Nematode
Heterodera marioni
Host
Castilla sp. (Gumtree) in/on Root
Origin
USA Florida Florida via Beltsville, Maryland
Collector
via E. May via G. Steiner
Date Received
1943 Feb 02
Disposition of Sample
Specimens to USDANC (General)
Slides
G-14338 to G-14377 (cross sections)

Entry Number: 34006

Nematode
Heterodera marioni
Host
Geranium sp. (Rose geranium) in/on Stem
Origin
USA Maryland Beltsville
Collector
E. M. Buhrer & J. H. Machmer via G. Steiner
Date Received
1943 Mar 05
Disposition of Sample
Specimens to USDANC (General)
Slides
G-14378 to G-14382 (cross sections)

Entry Number: 34007

Nematode
Heterodera marioni
Host
Solanum tuberosum (Potato) in/on Root
Origin
USA Florida Tampa
Collector
E. West via G. Steiner
Date Received
1943 Mar 08
Disposition of Sample
Specimens to USDANC (General)
Slides
G-14383 to G-14397 (cross sections)