SHORT NOTES 103 



which thus enters into the compositions of two different authors. 

 This is the best instance known to me as showing how completely 

 the praeses in this instance was the author. 



If a further instance of this peculiarity were required, that 

 might be cited of C. P. Thunberg and his Museum Naturalium 

 Academics Upsaliensis, consisting of twenty-two parts, issued from 

 1787 to 1797 : and his Nova Plantarum Genera, sixteen parts 

 from 1781 to 1801. 



SHOBT NOTES. 



Stellaria aquatica Scop. var. scandens Lej. — Mr. H. Stuart 

 Thompson's reference (p. 48) to the occurrence in Switzerland of 

 this plant with shoots four feet long reminded me that last 

 October, while botanizing with Mr. V. Murray at Suleham, Berks., 

 where he showed me Azolla caroliniensis, I noticed the above- 

 named variety growing to a height of eight feet, in a damp wood, 

 where it was supported by the surrounding vegetation : here also 

 grew Angelica sylvestris and Scrophularia aquatica nine feet high. 

 — G. C. Druce. 



Sagina procumbens L. forma (Journ. Bot. 1912, 288). — The 

 interesting form referred to by Mr. Turrill was described and 

 figured by Baxter in his British Phcenogamous Botany (hi. t. 199, 

 1837). It was found by the Eev. H. Davies, the author of Welsh 

 Botanology, in 1817, near Beaumaris. This form flowered in the 

 Oxford Botanic Garden on Aug. 22nd, 1836, and Baxter counted 

 in one flower no less than forty-four perfectly formed petals, all 

 of which in a fully expanded state occupied a circle of only one- 

 tenth part of an inch in diameter. — G. C. Druce. 



[Specimens of the plant from Davies's herbarium are in the 

 National Herbarium, with the following note : " Sagina procumbens 

 flore pleno ! This variety I gathered on the green at Beaumaris in 

 the summer of 1815. Each flower bears about thirty petals ; i. e. 

 from twenty-seven to thirty-two. H. Davies." — Ed. Journ. Bot.] 



BE VIEWS. 

 The Genus Iris. 



The Genus Iris. By William Kickatson Dykes. With forty- 

 seven coloured drawings by F. H. Bound, one coloured 

 plate of seeds by Miss P. M. Cardew, and thirty line draw- 

 ings by C. W. Johnson. Cambridge : At the University 

 Press. 1913 [Dec. 1912]. Folio, half-leather, pp. 245. 

 Price £6 6s. net. 

 This very handsome volume appeals alike to the art lover, the 

 horticulturist, and the botanist. It is of course from the 

 last standpoint that any criticism offered in these pages must 

 be attempted ; the others may be briefly dismissed, but will 

 doubtless find fuller notice elsewhere. We must, however, pay 

 tribute to the beauty and accuracy of Mr. F. H. Pound's plates, 



