44 PEOCEEDINGS OF THE 



together with specimens collected by Mr. J. Lawson in a clock at 

 Falmouth in 1900, representing a variety of T. alhldum which was 

 in cultivation in various botanic gardens on the Continent in the 

 early part of the last century, and at Kew as late as 1856, the 

 origin of which is, however, not known. Eetzius's specimen proves 

 that his T. alhidum (178t!) is identical with T. squarrosum, Savi 

 (1808-1810), non Linn., T. panormitanum, Presl (1826), and 

 T. lonrjestijmlatum, Loisel (1828). Hence it follows that the name 

 T. albichnn takes precedence before those names as well as T. dip- 

 saceum, Thuill. (1790), uhich was identified by Grenier & Godrou 

 and by Eouy Avith Savi's 2\ squarrosum. The colour of the corolla 

 is, as Eetzius describes it, whitish with a tinge of yellow, or, as 

 Savi says, of red ; in dry specimens it turns to a dirty yellow or 

 brown more or less suffused with purple. The calyx is 10-nerved, 

 not as Koch stated 20-nerved. The Falmouth variety is — apart 

 from the glabrous calyx-tube — identical with DeCandolle's T. ochro- 

 leucum var, ramosum [Fl. Franc, v. p. 529 (1805)], which the 

 author referred subsequently [Fl. Franc. Suppl. p. 557 (1815)] to 

 T. alhidum, \yilld. (sic). It agrees, indeed, very well with the 

 plant so named in Willdenow's herbarium (no. 14220), and, 

 according to a communication by Mr. Cas. DeC^andolle, with the 

 specimens on which Seringe evidently based his T. squarrosum 

 yax.Jiavicans (syn. excl.). The name proposed for this variety is 

 T. aihidurn, var. ramosum, Stapf. It is mainly characterized by the 

 low growth, small, mostly elliptic leaflets, and straw-yellow flowers. 

 The calyx-tube varies from glabrous to rather conspicuously hairy ; 

 the same is the case in T. albidum proper, although here specimens 

 with perfectly glabrous calyx-tubes are very rare. 



The following papers were read : — 



1. " On certain Species of Dischidia with Double Pitchers." Bv 

 H. H. W. Pearson, M.A., F.L.S. 



2. " On Silver-leaf Disease in Plums and other Prunese." By 

 Prof. J. Percival, M.A., F.L.S. 



3. " On the Occurrence and Formation of Crystals of Calcium 

 Oxalate in Seedlings of Alsike {TrifoKum hybridum, Linn.)." By 

 Prof. J. Percival, M.A., F.L.S. 



4. " On the Morphology of the Cerebral Commissures in the 

 Vertebrata, with special reference to an aberrant Commissure in 

 the Brain of certain Eeptiles.'" By Prof. Elliot Smith, of Cairo. 

 (Communicated by Prof. G. B. Howes, Sec.L.S.) 



June 19th, 1902. 

 Mr. AY. Caeeuthebs, F.E.S., Vice-President, in the Chair. 

 The Minutes of the last Meeting were read and confirmed. 

 The following gentlemen were severally balloted for and elected 



