394 MR. C. C. LACAITA : A REVISION OF 
Megacaryon in Pl. Or. Nov. Decas i. p. 7 (Feb. 1875), based on Bourgeau's 
specimen from Macka. Boissier does not there allude to Linnsus or 
Tournefort, but in Fl. Or. iv., published later in the same year, he altered 
the name from Megacaryon armenum to M. orientale, quoting | chium 
orientale, L., and Tournefort’s synonym. 
The synonymy therefore is Megacaryon orientale, Boiss. Or. iv. p. 204 
(1875) — M. armenum, Boiss. Pl. Or. Nov. Dec. i. p. 7 (1875, Feb.) = Onosma 
megalospermum, Boiss. in Bourg. exsicc. = Echium orientale, L. Sp. Pl. p. 140 
(1753) =, grandiflorum, Salisb. Prodr. p. 115 (1796), non Desf. 
Boissier says “ex unica corolla exsiecata in specimine fructifero fausto 
caso superstite florem descripsi," but since then fine specimens in flower 
and fruit have been collected by Sintenis, It. Orient. 1892, nos. 4159 and 
4859, from two places in Paphlagonia. These may be seen in Herb. Kew 
and in Mus. Brit. Poiret, Diet. Encyc. viii. p. 673, says that he has seen 
Tournefort’s type in Herb. Juss. He no doubt was alluding to specimen 
no. 6613, which, although labelled orientale, is nothing but X. plantagineum. 
There is no example of Tournefort’s species in his own herbarium. That 
Linneus never saw a specimen is certain, not only from his giving no 
diagnosis of his own and merely quoting Tournefort, but also from an MS. 
note in his interleaved copy of Sp. Fl. ed. 2, where he quotes for Z. orientale 
Tournefort’s figure, and also Trew, Pl. Rar. tab. 1, published in 1768. 
Trew's figure, which seems to represent Æ. grandiflorum, Desf., is so utterly 
unlike Megacaryon orientale, that no one who had ever seen an example of 
that striking plant could have connected this figure with it. 
(IIL) Ecutum. (A) Atlantic shrubby species. 
l. Echium candicans, L. fil. Suppl. p. 131. Specimen A, which is 
actually the type referred to by Linn. fil. 
2. Echium giganteum, L. fil. ibidem. No specimen. 
3. Echium strictum, L. fil. ibidem. No specimen. 
(IV.) Ecntum. (B) European herbaceous species. 
1. Echium creticum, L. Sp. Pl. (1753) p. 139. Specimen N. 
2. Echium italicum, L. ibidem. Specimen H. 
3. Echium lusitanicum, L. ibidem. Specimen M. 
4. Echium plantagineum, L. Mant. p. 202. Specimen C. 
5. Echium pyrenaicum, Desf. (L. Mant. p. 334). Specimen I. 
6. Echium rubrum, Jacq. Not mentioned anywhere by Linnzeus, but 
represented in the herbarium by the three unnamed specimens 
J, K, L. 
T. Echium violaceum, L. Mant. p.42. Specimen F. 
8. Kehium vulgare, L. Sp. Pl. (1753) p. 139. Specimen B, 
9. Echium —— ? Specimen G. 
