nathantaylor's Journal

For any of the curators who have been working on Euphorbia, Euphorbia PBI has a data portal where essentially all the species have been assigned subgeneric classification (under description). I've been working through the majority of the species as I find them and should have gotten all the North American species that have been added so far and have been slowly working through others. All this to say, there is a single source where the information can be referenced if you are interested.

Here's the link: http://app.tolkin.org/projects/72/taxa

All observations

Species
Euphorbia abramsiana
Euphorbia apicata
Euphorbia albomarginata
Euphorbia arizonica
Euphorbia bartolomaei
Euphorbia brandegeei
Euphorbia capitellata
Euphorbia "geminiloba": ob. 1, ob. 2, ob. 3.
Euphorbia cerralvensis
Euphorbia chamberlinii
Euphorbia dentosa
Euphorbia dioeca
Euphorbia hirta
Euphorbia hyssopifolia
Euphorbia incerta
Euphorbia leucophylla
Euphorbia leucophylla ssp. leucophylla
Euphorbia leucophylla ssp. comcaacorum (Sonora only)
Euphorbia maculata
Euphorbia magdalenae
Euphorbia melanadenia
Euphorbia micromera
Euphorbia pediculifera
Euphorbia pediculifera var. pediculifera
Euphorbia pediculifera var. linearifolia
Euphorbia pediculifera (taluticola maculations)
Euphorbia peninsularis
Euphorbia petrina: Patrick Alexander photos
Euphorbia polycarpa
Euphorbia polycarpa var. carmenensis
Euphorbia polycarpa var. johnstonii
Euphorbia polycarpa var. mejamia
Euphorbia polycarpa var. polycarpa
Euphorbia polycarpa var. intermixta (placeholder name only)
Euphorbia polycarpa morphotype 1 (placeholder only)
Euphorbia pondii
Euphorbia serpens
Euphorbia serpillifolia
Euphorbia setiloba
Euphorbia taluticola
Euphorbia tomentulosa
Euphorbia trachysperma
Euphorbia vizcainensis

Southern Islands
All observations
Euphorbia anthonyi: morphotype 1 (Isla Clarión), morphotype 2 (Isla San Benedicto; Type locality), morphotype 3 (Isla Soccoro).
Euphorbia incerta

var.

Plants in the subfamily Asclepiadoideae all have a very interesting morphology. One particularly interesting modification is that the staminate and pistillate parts are fused together into a structure called a gynostegium. The stamens have been modified so that the pollen sticks together to form pollinia. Members of the Genus Asclepias (and some other genera) have a very specialized corona that forms structures called hoods and horns. This morphology is explained in the below longitudinal section.

Close-up of a pollinium:

This is what it looks like normally.