ON NAIAS GBAMINEA DEL., VAR. DELILEI MAGNUS. 



Kunth, Enumeratio Plantarum, &c, Tom. iii., p. 115. 

 Boissier, Flora Orientalis, vol. v., p. 28. 



Gompendio della Flora Italiana compilato per cura dei Professori 



V. Cesati, G. Passerini, e G. Gibelli. Par. i., p. 205. 



Najas alagnensis Pollini, Hort. et provino. Veron. pi. nov. vel. min. 



oogn., p. 26. Flora Veronensis quam in prodromum Florae 



Italise septentrionalis exhibit Gyrus Pollinius; Tom. iii., 



p. 49 (1824). 



L. Beichenbach, Flora Germanica Excursoria, No. 920, p. 151. 



Chamisso, Aquatics quaedam diversae affinitatis in Linnaea, 



vol. iv., p. 502 (1829). 

 Antonii Bertolonii, M.D., Flora Italioa sistens plantas in Italia 

 et in insulis oircumstantibus sponte nascentes. Tomo x., 

 faso. iii., p. 296. 

 Naias serristipula Nocc. et Balb., Io. Fl. Ticin., Tab. 15 ex specim. 



sice, delineata. 

 Naias tenuifolia Aschers., Atti della Societa Italiana di Scienze 



naturali, pp. 267 & 268. Non B. Br. 

 Najas graminea Del., var. Delilei Magnus, Berichte der deutschen 

 botanischen Gesellschaft ; Band i., Heft 10, Jahr. 1883, 

 pp. 522 & 523. 

 Caulinia alagnensis Pollini, Plant. Veron., 26. 



Diar. Brugnatelli Giorn. ann. 1816, T. ix., p. 175. 



Bluff et Fingerhuth, Compendium Floras Germanise, Sectio L, 



ed. alt. ii., p. 585. 

 Flora Italiana, . . . . di Filippo Parlatore, vol. iii., pp. 665, 666. 

 Caulinia intermedia Balb., Elench. recentium stirpium, quas Pede- 

 montanae florae addendas censet., &c. ; in Mem. della B. 

 Accad. di Tor. Ann. 1818, Tom. 23, p. 105. 

 Balb. et Nocca, Flor. Ticin., Tom. ii., p. 163, tab. 15. 

 Nocca, Clav., ii., p. 91. 

 Caulinia microphylla Nocc. et Balb., Flor. Ticin., Tom. ii., p. 163, 

 tab. 16. 



It still remains a question whether this plant should bear 

 Delile's name, or Pollini's name, according as the one or the other 

 had priority in publication, as has been pointed out by Prof. 

 Ascherson in ' Atti della Societa Italiana,' vol. x., p. 267, where 

 he shows that the description, of Ihe plant of Pollini was eertainly 

 published in 1814 ; whilst the Memoir of Delile, although perhaps 

 printed in 1813, was not published until some later- year. I cannot 

 elucidate this point further, as my copy of Delile has no title-page, 

 and my edition of Pollini's ' Flora Veronensis ' is that of 1824. 

 Pollini's herbarium-specimen of the Italian plant is preserved 

 among the possessions of the Society of Naturalists of Bhenish 

 Westphalia, in Bonn. 



The Italian plant is not the same as Eobert Brown's Naias 

 tenuifolia, Prodr. Fl. Nov. Holland., p. 545, published in 1810, on 

 account of the entirely different structure of the male flower (see 

 Plate 251, fig. 15) ; otherwise the name would have taken prece- 

 dence of Pollini's and Delile's, 



