USDA Nematode Collection was established in June 1960 By A. Morgan Golden. It is currently directed and curated by Dr. Zafar A. Handoo 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.
Displaying 34009 - 34020 of 41939
Entry Number: 34016
- Nematode: Heterodera marioni
- Host: Tagetes sp. (Marigold (Leib.)) in/on Root
- Origin: Washington, DC (Exp.), District of Columbia, USA
- Collector: J. Tyler via G. Steiner
- Date Received: 1938 Jan 18
- Disposition of Sample: Specimens to USDANC (General)
- Slides: G-14486 to G-14495 (cross sections)
Entry Number: 34017
- Nematode: Heterodera marioni
- Host: Tagetes sp. (Marigold (Fire Cross)) in/on Root
- Origin: Washington, DC (Exp.), District of Columbia, USA
- Collector: J. Tyler via G. Steiner
- Date Received: 1938 Jan 18
- Disposition of Sample: Specimens to USDANC (General)
- Slides: G-14496 to G-14505 (cross sections)
Entry Number: 34018
- Nematode: Heterodera marioni
- Host: Tagetes sp. (Marigold (Harmony)) in/on Root
- Origin: Washington, DC (Exp.), District of Columbia, USA
- Collector: J. Tyler via G. Steiner
- Date Received: 1938 Jan 18
- Disposition of Sample: Specimens to USDANC (General)
- Slides: G-14506 to G-14544 (cross sections)
Entry Number: 34019
- Nematode: Diplogaster-like
- Host: Narcissus sp. (Narcissus) in/on Root
- Origin: Salisbury, Maryland, USA
- Collector: E. Townsend via Griffith's & Evinger via G. Steiner
- Date Received: 1933 Feb 15
- Disposition of Sample: Specimens to USDANC (General)
- Slides: G-14545 (head face view)
Entry Number: 34020
- Host: Arachis hypogaea (Peanut)
- Origin: Arlington, Virginia, USA
- Collector: E. E. Clayton via G. Steiner
- Date Received: 1941 Dec 19
- Disposition of Sample: Specimens to USDANC (General)
- Slides: G-14546 to G-14575 (cross sections)
Entry Number: 34021
- Nematode: Heterodera marioni
- Host: Nicotiana tabacum (Tobacco) in/on Root
- Origin: Arlington, Virginia, USA
- Collector: E. E. Clayton via G. Steiner
- Date Received: 1941 Dec 19
- Disposition of Sample: Specimens to USDANC (General)
- Slides: G-14576 to G-14585 (cross sections)
Entry Number: 34022
- Nematode: Heterodera marioni
- Host: Iris sp. (Iris) in/on Root
- Origin: Unknown, USA
- Collector: via G. Steiner
- Date Received: Unknown
- Disposition of Sample: Specimens to USDANC (General)
- Slides: G-14586 to G-14592 (cross sections)
Entry Number: 34023
- Nematode: Heterodera marioni
- Host: Paeonia sp. (Peony) in/on Root
- Origin: Unknown, USA
- Collector: via G. Steiner
- Date Received: Unknown
- Disposition of Sample: Specimens to USDANC (General)
- Slides: G-14593 to G-14596 (cross sections)
Entry Number: 34024
- Nematode: Heterodera marioni
- Host: Petunia sp. (Petunia) in/on Root
- Origin: Unknown, USA
- Collector: via G. Steiner
- Date Received: Unknown
- Disposition of Sample: Specimens to USDANC (General)
- Slides: G-14597 to G-14600 (cross sections)
Entry Number: 34025
- Nematode: Heterodera marioni
- Host: Amaranthus sp. (Amaranthus) in/on Root
- Origin: Unknown, USA
- Collector: via G. Steiner
- Date Received: Unknown
- Disposition of Sample: Specimens to USDANC (General)
- Slides: G-14601 to G-14604 (cross sections)
Entry Number: 34026
- Nematode: Heterodera marioni
- Host: Tagetes sp. (Marigold) in/on Root
- Origin: Unknown, USA
- Collector: via G. Steiner
- Date Received: Unknown
- Disposition of Sample: Specimens to USDANC (General)
- Slides: G-14605 to G-14609 (cross sections)
Entry Number: 34027
- Nematode: Heterodera marioni
- Host: Nicotiana tabacum (Tobacco) in/on Root
- Origin: Unknown, USA
- Collector: via G. Steiner
- Date Received: Unknown
- Disposition of Sample: Specimens to USDANC (General)
- Slides: G-14610 to G-14612 (cross sections)