Welcome to the Lucidcentral Key Search

Citrus ID aims to provide support for the identification of host material during citrus pest and disease surveys by industry and government agency personnel. The tool focuses primarily on cultivars of citrus and its relatives that have been introduced and released for cultivation in the U.S.

Citrus ID treats over 500 entities of citrus and citrus relatives. This is an extensively illustrated tool with 1,270 images in the key and over 11,500 images in the fact sheets and image gallery. Recognizing that different users may be familiar with different names for the same cultivar and that there exist competing classifications in the group, the tool also includes a search function that can be queried by either common or scientific name.

Published by: USDA-APHIS-PPQ-CPHST

The release of Australian Tropical Rainforest Plants Edition 6 (RFK6) represents another significant milestone in the development of this information system for identifying and learning about plants in Australian tropical rainforests. Each edition of the system since 1971 has made significant advances in the coverage of plant groups, the numbers of species included, the effectiveness of the identification system, and in the utilisation of current technology. The aim of this new edition is to make identifications possible and easier, and make taxonomic information accessible to the wider scientific community and the population as a whole.

The development of RFK6 has been marked by major changes in the project, most significantly the retirement of the creator and developer for over 45 years, Dr Bernie Hyland; Dr Trevor Whiffin who pioneered the use of computers in plant identification; the technical officers Bruce Gray and Rebel Elick; and also of David Christophel.

Another major change during the development of RFK6, was the relocation in 2007-08 of the Australian National Herbarium – Atherton, from Atherton to a new facility in Cairns as part of the Australian Tropical Herbarium (ATH).  The new joint venture between CSIRO, James Cook University and the Qld Department of Environment and Resource Management is now hosting the ongoing development of the Australian Tropical Rainforest Plants.

This tool enables the user to identify 72 of the most common adult grasshoppers of the western United States, many of which pose environmental and economic threats. This Edition 3 of Grasshoppers of the Western United States features links to high resolution images of all life stages (instars through adults) of nearly all the species to aid in identification. A total of 14 species added to the tool since Edition 1 are illustrated with new high quality digital photographs. Changes since Edition 2 include improved image quality for many of the original images derived from original 35mm slides.

Grasshoppers of the Western United States, Edition 3 in Lucid version 3 is available through the “Site for key download” link at the bottom of this page.

Common Grasshoppers of the Western United States (Edition 1) is still available online in Lucid version 2 only and is accessible at

http://www.lucidcentral.org/keys/grasshopper/nonkey/html/index.htm

Cost: Free

Published By: USDA-APHIS-PPQ

Publisher Email: amanda.j.redford@aphis.usda.gov

Release history: Edition 1: 04/04; Edition 2: 02/08; Edition 3: 07/08

In this identification and information resource, 9 individual tools cover groups of commonly intercepted mite taxa, each with an interactive identification key. Mites (Arachnida subclass Acari) include a host of parasites that can devastate crops by their feeding or by transmitting plant pathogens, and a great diversity of parasitic mites that can infest domestic and wild animals. Because mites are tiny (mostly less than 1 mm in length) and highly diverse, they present a major challenge to quarantine. The 9 mite tools in this resource are designed to support training in mite anatomy and identification, preliminary identification, and advanced taxonomic support. Also included is an illustrated glossary of mite terminology with more than 700 defined terms.

Published by: USDA-APHIS-PPQ- CPHST

Cost: Free