on the Hortus Malabaricus, Part 11. 283 
Breynius under the name of Euphorbio et Tithymalo media affinis 
aizoides Indica arborescens spinosa Nerii folio: but when he 
published the Phytographia (t. 930. f. 4.), he quoted the Ela 
Calli with doubt; for which perhaps there was reason, as we 
shall afterwards see. He also quoted, although with doubt, the 
Tithymalus africanus arborescens spinosus et foliosus lactescens et 
Euphorbium fundens, which is quite different from the E/a Calli, 
being the true Euphorbium, with which, however, the Ela Calli 
has been confounded by very able botanists. 
- The elder Burman (Thes. Zeyl. 95.) quotes the Ela Calli for 
his Euphorbio-Tithymalus spinosus, caule rotundo, et anguloso, foliis 
Nerii latioribus, et angustioribus. Here he includes two very 
distinct species, which he allows had been distinguished by 
Commeline, and by a writer in the Mémoires de l' Académie des 
Sciences; but ** quas tantum varietates habeo, si vero quis di- 
stinctas velet species, per melicet." As these species are totally 
different, it is to be regretted that he did not refer the synonyma 
to each of his varieties separately, as, in the manner they now 
stand, they are useless; and it remains uncertain especially, to 
which we should refer the species mentioned by Plukenet and 
Breynius, as above stated. Burman, however, here acted with 
propriety, in so far as he put his reader on his guard. 
Linnzus, without giving any direct notice as Burman had 
done, included both the angular- and round-stemmed plants in 
one species (FI. Zeyl. 200.), leaving it utterly impossible to 
judge which he meant; only perhaps it may be inferred, from 
the term ** angulis oblique tuberculatis” used in the specific cha- 
racter, that he meant the kind with the angular stem, which is 
not the Ela Calli, although this is quoted. By this time the 
plant described by Linnæus had become common in the gardens 
of Europe, and is probably that now common there. 
In the Species Plantarum followed by the younger Burman 
VOL. XIV. 2 P (FI. 
