Some additional resources:

1. California Native Plant Society – www.cnps.org

2. California Native Plant Society – South Coast Chapter – https://chapters.cnps.org/southcoast/

3. Palos Verdes Peninsula Land Conservancy – www.pvplc.org

4. Calflora – www.calflora.org

5. California Moss eflora – http://ucjeps.berkeley.edu/CA_moss_eflora/

6. California Botanical Society – http://calbotsoc.org/

7. Southern California Botanists – http://www.socalbot.org/

8. Consortium of California Herbaria (CCH2) – https://www.cch2.org/portal/

9. Jepson eflora – http://ucjeps.berkeley.edu/IJM.html

10. Consortium of North American Bryophyte Herbaria (CNABH) – https://bryophyteportal.org/portal/index.php

11. California Native Plant Society – Bryophyte Chapter – http://bryophyte.cnps.org/index.php

12. Link to JSTOR and paper by Young 1974:

https://www.jstor.org/stable/2805727?searchText=INTROGRESSIVE%20HYBRIDIZATION%20IN%20TWO%20SOUTHERN%20CALIFORNIA%20SPECIES%20OF%20RHUS%20(ANACARDIACEAE)&searchUri=%2Faction%2FdoBasicSearch%3FQuery%3DINTROGRESSIVE%2BHYBRIDIZATION%2BIN%2BTWO%2BSOUTHERN%2B%2BCALIFORNIA%2BSPECIES%2BOF%2BRHUS%2B%2528ANACARDIACEAE%2529&ab_segments=0%2Fbasic_search_gsv2%2Fcontrol&refreqid=fastly-default%3Ac11850075757fee0b1590d1dc88780c5

13. Link to BioOne Complete and paper by Nicholas 2011:

https://bioone.org/journals/the-pan-pacific-entomologist/volume-87/issue-2/2011-20.1/Host-induced-polyphenism-in-the-psylloid-Calophya-californica-Schwarz-Hemiptera/10.3956/2011-20.1.short#:~:text=Discrete%20external%20morphology%20mediated%20by%20host%20plant%20substrate,mediated%20polyphenism%20in%20larval%20stages%20within%20the%20Psylloidea.

Helpful Books & Papers

1. Plant Identification Terminology An Illustrated Glossary 2nd edition (Harris & Harris)
2. Biology of Floral Scent (Natalia Dudareva & Eran Pichersky)
3. A Flora of Southern California (Philip A. Munz)
4. The Kew Plant Glossary An Illustrated Dictionary Of Plant Terms 2nd edition (Henk Beentje)
5. Wildflowers of Orange County and The Santa Ana Mountains (Robert L. Allen & Fred M. Roberts, Jr.)
6. Manual of the Grasses of the United States Volume 1 (A.S. Hitchcock – 2nd edition revised by Agnes Chase)
7. Manual of the Grasses of the United States Volume 2 (A.S. Hitchcock – 2nd edition revised by Agnes Chase)
8. Introduction To The Plant Life of Southern California (Philip W. Rundel & Robert Gustafson)
9. Field Guide To Grasses of California (James P. Smith, JR.)
10. Flora of The Santa Ana Mountains (Oscar F. Clarke)
11. Nature’s Palette The Science of Plant Color (David Lee)
12. Flora of the Marshes of California (Herbert L. Mason)
13. California Desert Flowers An Introduction To Families, Genera, And Species (Sia Morhardt & Emil Morhardt)
14. Botany In A Day – The Patterns Method of Plant Identification (Thomas J. Elpel)
15. Plants Of The World – An Illustrated Encyclopedia Of Vascular Plants (Maarten J. M. Christenhusz, Michael F. Fay, & Mark W. Chase)
16. Mosses And Other Bryophytes, An Illustrated Glossary 2nd edition (Bill & Nancy Malcom)
17. California Mosses (Bill & Nancy Malcom, Jim Shevock, & Dan Norris)
18. Introduction To Contributions Toward A Bryoflora Of California, Part IV (James R. Shevock) – Madrono Vol. 62, Number 4, 2015.
19. A Checklist Of The Bryophytes Of The California Channel Islands (Benjamin E. Carter) – Madrono Vol. 62, Number 4, 2015.
20. Field Guide to Liverwort Genera of Pacific North America (W.B. Schofield)
21. Flora of North America Volume 27 – Bryophytes: Mosses, Part 1
22. Flora of North America Volume 28 – Bryophytes: Mosses, Part 2
23. Contributions Toward A Bryoflora Of California: II. A Key to The Mosses (Daniel H. Norris & James R. Shevock) – Madrono Vol. 51, Number 2, 2004.
24. Contributions Toward A Bryoflora of California III. Keys And Annotated Species Catalogue For Liverworts And Hornworts (William T. Doyle & Raymond E. Stotler) – Madrono Vol. 53, Number 2, 2006.
25. Textbook Of Bryophyta (Afroz Alam)