Δεκέμβριος 20, 2020

References

Insects

Free pdfs of various insect id guides (Societas Entomologica Canadensis)
https://esc-sec.ca/publications/aafc

Flies: https://sites.google.com/view/flyguide

Birds

Cream-winged vs White-winged Cinclodes
https://www.facebook.com/photo/?fbid=3841509049192659&set=gm.3908637999180641

Fungi

https://forum.inaturalist.org/t/laymans-guide-to-fungus-orders-families/46181/4

Plants

Some California roses (https://ucjeps.berkeley.edu/eflora/eflora_keys.php?key=11262)

  1. R. spithamea (ground rose) : straight thorns, short stems, shrub up to .5 m.
    Likes recently burned areas.
    https://www.inaturalist.org/observations/77086906

  2. R. gymnocarpa (baldhip rose) : Slender, straight prickles, bald hip. Shrub up to 2 m.
  3. R. californica (CA rose) : recurved thorns, shrub up to 2.5 m
  4. R. woodsii

Maianthemum stellatum: inflorescence raceme
Maianthemum racemosum: inflorescence panicle

Dipsacus (joedziewa: https://www.inaturalist.org/observations/86819814)
D. sativus with white flowers and sturdy recurved flower bracts
D. fullonum with thinner, straight flower bracts and thinner involucral bracts

Euphorbia https://www.inaturalist.org/projects/euphorbia-species-of-the-united-states/journal/18753-recommended-recourses

Poales: Rushes are round, sedges have edges.

Brassica nigra vs Hirschfeldia incana (https://forum.inaturalist.org/t/brassica-nigra-and-hirschfeldia-incana-why-so-many-mistakes/24528/15)

E. brachycarpum has bisymmetrical flowers (with two slightly larger petals above three slightly smaller ones). Single dark stripe on petals. (https://www.inaturalist.org/observations/81530837)

[spins] Hi. The season’s first generation of Brassica nigra is (generally) unmistakable: it grows very tall (taller than many human beings in fact). It gets more complicated (well, not really if you take care) later on in the season: Brassica nigra grows less tall then and many plants are somewhat aberrant (e.g. pods no longer adpressed against the stem).
I notice that in many records the plants have fully grown pods. A quick glance (naked eye) at the pods should suffice (however, they have to be fully grown!). Pods of both species are highly distinctive. In Brassica nigra, the pods have 4 raised ribs and therefore have square cross section. The beak does not contain seeds. In Hirschfeldia incana, the pods have terete cross section, the apical part of the beak contains 1-2 seeds and the beak is constricted below the apical part.
Lower leaves of Hirschfeldia incana (many still present at flowering, more so than in Brassica nigra) have many more small basal lobes than leaves of Brassica nigra.
Ignore the colour of the flowers (this is not a good idea in yellow crucifers in my experience) but take notice of the colour of the whole plant: Hirschfeldia incana is generally much duller and darker than Brassica nigra and often (but not always) clearly grey tinged.
[blue_celery] Concerning the habitus, H. incana has always most of the leaves in the basal rosette, even in the case of large individuals. On the contrary, B. nigra has a much more leafy stem.

Posted on Δεκέμβριος 20, 2020 0520 ΜΜ by avocat avocat

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