TY, I know you're contagiously enthusiastic, I love that!
I'm asking about ID'ing the other species of Portulaca besides purslane. (Purslane = Portulaca oleracea, which you probably know, but not sure from your phrasing.) There should be some kind of written key describing the measurements of each part of the anatomy of each species, but may not be something that's been put in digital, internet form, in English. I've been unable to find one.
Before any cameras existed, all plants were ID'd by comparing written descriptions. Here's a good example of a written ID key, for Commelina:
http://flora.huh.harvard.edu/c...
Here's a partial list of the un-pictured Portulaca species, wouldn't it be fun to see them?!:
(Portulaca argentinensis)
(Portulaca aurantiaca)
(Portulaca bicolor)
(Portulaca brevifolia)
(Portulaca bulbifera)
(Portulaca californica)
(Portulaca canariensis)
(Portulaca cardenasiana)
(Portulaca caulerpoides)
(Portulaca centrali-africana)
(Portulaca chacoana)
(Portulaca ciferrii)
(Portulaca clavigera)
(Portulaca colombiana)
(Portulaca commutata)
(Portulaca confertifolia)
(Portulaca confertifolia var. cordobensis)
(Portulaca conoidea)
(Portulaca constricta)
(Portulaca conzattii)
(Portulaca coralloides)
(Portulaca cryptopetala)
(Portulaca cubensis)
(Portulaca cyclophylla)
(Portulaca cypria)
(Portulaca daninii)
(Portulaca decorticans)
(Portulaca dhofarica)
(Portulaca diegoi)
(Portulaca digyna)
(Portulaca dodomaensis)
(Portulaca echinosperma)
(Portulaca edulis)
(Portulaca eitenii)
(Portulaca elatior)
(Portulaca elongata)
(Portulaca elongata var. pedicellata)
(Portulaca eruca)
(Portulaca erythraeae)
(Portulaca fascicularis)
(Portulaca filsonii)
(Portulaca fischeri)
(Portulaca fluvialis)
(Portulaca fluvialis var. tacuaremboensis)
(Portulaca foliosa)
(Portulaca foliosa var. lateritia)
(Portulaca fragilis)
(Portulaca frieseana)
(Portulaca fulgens)
(Portulaca gilliesii)
