After the rearrangement of the system of Euphorbia subg. Esula Pers., E. sect. Chylogala (Fourr.) Prokh. contains four species: E. alaica (Prokh.) Prokh. (mountains of Middle Asia), E. heteradena Jaub. & Spach (Southwest Asia), E. retusa Forrsk. (deserts of North Africa and Southwest Asia) and E. serrata L. (West Mediterranean). This group is revised here. Special attention is given to E. alaica, a poorly known species from Kyrgyzstan and Tadjikistan. Lectotypes are designated for the names Euphorbia coriacea K. Koch, E. megalantha Boiss. and E. megalantha var. denticulata Boiss.
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21 June 2013
Revision of Euphorbia sect. Chylogala (Euphorbiaceae)
Dmitry V. Geltman
Willdenowia
Vol. 43 • No. 1
Jun 2013
Vol. 43 • No. 1
Jun 2013
lectotype
Mediterranean
Middle Asia
Southwest Asia
taxonomy