The Lycopodium alkaloids

https://pubs.rsc.org/en/Content/ArticlePDF/2016/NP/C6NP00074F

Phytocannabinoids: a unified critical inventory.

A working checklist of accepted taxa worldwide is vital in achieving the goal of developing an online flora of all known plants by 2020 as part of the Global Strategy for Plant Conservation. We here present the first-ever worldwide checklist for liverworts (Marchantiophyta) and hornworts (Anthocerotophyta) that includes 7486 species in 398 genera representing 92 families from the two phyla. The checklist has far reaching implications and applications, including providing a valuable tool for taxonomists and systematists, analyzing phytogeographic and diversity patterns, aiding in the assessment of floristic and taxonomic knowledge, and identifying geographical gaps in our understanding of the global liverwort and hornwort flora. The checklist is derived from a working data set centralizing nomenclature, taxonomy and geography on a global scale. Prior to this effort a lack of centralization has been a major impediment for the study and analysis of species richness, conservation and systematic research at both regional and global scales. The success of this checklist, initiated in 2008, has been underpinned by its community approach involving taxonomic specialists working towards a consensus on taxonomy, nomenclature and distribution.

/pdf/world-checklist-of-hornworts-and-liverworts-2eqzlt4g3g.pdf

World checklist of hornworts and liverworts.

Cannabis sativa L. is possibly one of the oldest plants cultivated by man, but has remained a source of controversy throughout its history. Whether pariah or panacea, this most versatile botanical has provided a mirror to medicine and has pointed the way in the last two decades toward a host of medical challenges from analgesia to weight loss through the discovery of its myriad biochemical attributes and the endocannabinoid system wherein many of its components operate. This study surveys the history of cannabis, its genetics and preparations. A review of cannabis usage in Ancient Egypt will serve as an archetype, while examining first mentions from various Old World cultures and their pertinence for contemporary scientific investigation. Cannabis historians of the past have provided promising clues to potential treatments for a wide array of currently puzzling medical syndromes including chronic pain, spasticity, cancer, seizure disorders, nausea, anorexia, and infectious disease that remain challenges for 21st century medicine. Information gleaned from the history of cannabis administration in its various forms may provide useful points of departure for research into novel delivery techniques and standardization of cannabis-based medicines that will allow their prescription for treatment of these intractable medical conditions.

/pdf/history-of-cannabis-and-its-preparations-in-saga-science-and-1ib99p55km.pdf

History of Cannabis and Its Preparations in Saga, Science, and Sobriquet

The African rainforest -- main characteristics of changes in vegetation and climate from the Upper Cretaceous to the Quaternary

/pdf/pollination-drop-in-relation-to-cone-morphology-in-2km3xdf50m.pdf

Pollination drop in relation to cone morphology in Podocarpaceae : a novel reproductive mechanism.

The ether extract of the New Zealand liverwort Radula marginata afforded a new cannabinoid type bibenzyl compound named perrottetinenic acid, and two new bibenzyls, together with a known cannabinoid, perrottetinene. Their structures were established by two dimensional (2D) NMR spectral data. The structure of perrottetinenic acid was a similar to that of Δ1-tetrahydrocannabinol, a known hallucinogen. Cannabinoid type bibenzyls have been isolated from liverwort Radula perrottetii, though have not previously been reported from the liverwort R. marginata.

/pdf/new-bibenzyl-cannabinoid-from-the-new-zealand-liverwort-s6hcahcu12.pdf

New bibenzyl cannabinoid from the New Zealand liverwort Radula marginata.

Two new ent-kaurene-type and a new rearranged ent-kaurene-type diterpenoids possessing cytotoxicity against a human leukemia cell line have been isolated from the New Zealand liverwort Jungermannia species, together with previously known ent-kaurene-type diterpenoids. Their structures were established based on extensive NMR techniques.

https://www.jstage.jst.go.jp/article/cpb/51/10/51_10_1189/_pdf

New ent-kaurene-type diterpenoids possessing cytotoxicity from the New Zealand liverwort Jungermannia species.

Volatile components of selected species of the liverwort genera Frullania and Schusterella (Frullaniaceae) from New Zealand, Australia and South America: a chemosystematic approach.

Forty-eight species of liverworts (Marchantiophyta) are reported as new to the Fiji Islands. These records increase the number of Fijian liverworts by over 20%. Extensions of range within Fiji are reported for an additional 39 taxa already known to occur within the Fijian archipelago. These records indicate that the Fijian flora is understudied and many localities in Fiji, including entire islands, remain under-collected for bryophytes. Metalejeunea crassitexta (J.B.Jack et Steph.) Pocs is proposed as a new combination, and Lejeunea microstipula Steph. is reduced to a synonym of Lejeunea exilis (Reinw., Blume et Nees) Grolle.

/pdf/new-liverwort-marchantiophyta-records-for-the-fiji-islands-1jkocsnwep.pdf

John E. Braggins

Papers

Pollination drop in relation to cone morphology in Podocarpaceae : a novel reproductive mechanism.

New bibenzyl cannabinoid from the New Zealand liverwort Radula marginata.

New ent-kaurene-type diterpenoids possessing cytotoxicity from the New Zealand liverwort Jungermannia species.

Volatile components of selected species of the liverwort genera Frullania and Schusterella (Frullaniaceae) from New Zealand, Australia and South America: a chemosystematic approach.

New liverwort (Marchantiophyta) records for the Fiji Islands