WORLD BOTANICAL ASSOCIATES

Holacanthone

Conocurvone, anti-HIV active agent from Conospermum
Conocurvone

Vermilacinia johncassadyi

Conospermum unilaterale

Richard Spjut, Principal Investigator
richspjut@gmail.com
Expeditions

Random	Samples collected with limitation only to avoid duplication of species, sometimes referred to as “biodiversity sampling” or “biodiversity prospecting.”
Systematic	Samples obtained according to phytogeographic and taxonomic criteria, and by emphasis on plant parts most likely to show activity. Cost according to limitations.
Folklore	Collections guided by ethnobotanical data, either by working directly with local practitioners, or by reports in literature.

Recollections

Taxus brevifolia (Pacific yew) stem-bark

Extracts and Screening

Taxol in various stages of preparation

1. Plant Procurement Data on Antitumor Active Plants from the United States (1960–1982)

2. Baja California Plants Screened for Antitumor Activity

3. Plants Used As Anthelmintics, Fish Poisons, Arrow Poisons Screened For Antitumor Activity

4. Bryophytes Collected for Antitumor Screening

Photographs and Reports of Plants from Around the World

Africa Australia North America

Taxonomic Reports

Carex

1. Key to 44 Species of Carex
on the Beltsville Agricultural
Research Center, Maryland.

Lichens

2.   Mobergia
     Niebla
     Vermilacinia

     Review: Lichen Flora of the
         Greater Sonoran Desert Region

Fruit and Seed Terminology

3. A Systematic Treatment of Fruit Types.

4. Reviews: (a) Fruits and Seeds of Brazil Dicots
        (b) Seeds: The Time Capsules of Life
        (c) Fruit: Edible, Inedible, Incredible
        (d) Fruits of the Australian Tropical Rainforest
        (e) Tropical and Subtropical Trees:
              An Encyclopedia

Taxus

5. Nomenclatural and Taxonomic Review
of Three Species and Two Varieties of
Taxus (Taxaceae) in Asia Table 1.

6. Keys and Descriptions for Species
of Taxus

             Introduction to Taxonomy of Taxus

             North America. Includes stomata data
             for herbarium specimens plotted on
             map of North America.

             Species Groups and Subgroups
          (Classification, WBA Online Herbarium
             of Taxus Images).

             A phytogeographical analysis of Taxus
             (Taxaceae) based on leaf anatomical
             characters. J. Bot. Res. Inst. Texas 1:
             291–332.

            Taxonomy and nomenclature of Taxus
             (Taxaceae). J. Bot. Res. Inst. Texas 1:
             203–289.

7. Folklore: Relationships between plant
           folklore and antitumor activity: An
           historical review. Sida 21(4):
           2205–2241.