464 THE AMERICAN MIDLAND NATURALIST 
Page 395, line 34, for “‘ proptera”’ read ‘‘ Proptera’’. 
Page 396, line 20, for “‘tecxasensis’’ read ‘‘texasensis’’, 
Page 400, line 6, for ‘‘central’’ read ‘‘center’’; after line 10 supply 
the following deletion from text :— 
SHELL CHARACTERS:—Shell elliptical, small or medium, beak sculp- 
ture rather double-looped or distinctly sinuate with posterior sinuation 
somewhat open. 
ERRATA. 
(PLates I—XXVIII.) 
Pim Hige2, foGewavel, reade«valve 
Pl. II, Fig. 5a, Supply label 4, i. e., ‘‘ Extreme dorsal point.” 
Pl. V, Fig. 12b, for “ Utterbacke” read ““ Utterbackit’=s dos Pimexewe 
Figs. 63 A—D. 
Pl. VI, Figs. 14 a—d, for “ Curtzsi”’ read *‘ Curtisiz””; do. Pl. XXVIII, 
Figs. 109 A—D. 
Pl. IX, Fig. 19, After ‘feeding’? supply comma and “‘respiring”’. 
Pl. XIII, Fig. 26, Supply ““-Hundred” after ‘““One;”’ do. Pl. XXVI, 
Fig. go. 
Pl. XVI, Figs. 38 A—D, for ‘‘Quintardi” read ‘‘ Quintardit”’. 
Pl. XIX, Fig 52, for “‘cylindirca’’ read ‘‘cylindrica”’. 
Pl. XXV, Fig. 81, for ‘‘clintonesnsis’’ read ‘‘clintonensis’’. 
Pl. XXVIII, Fig. 107, for ‘‘ventricoas”’ read ‘‘ventricosa’’. 
|JCLEISTOGAMOUS FLOWERS IN THE PANSIES. 
BY J. A. NIEUWLAND. 
In a former article? where reference was made to the presence 
or absence of cleistogamous flowers in certain groups of violets 
it was supposed that the pansies were devoid of this peculiar 
form of self-fertilization. For more than a year we have suspected 
the possibility of ceistogamay in certain members of the Mnemion 
group, and particularly in Viola RKafinesqui1, Greene. Dr. Greene 
himself first called our attention to the fact that he believed the 
first flower that appeared on the young plant in spring is ‘‘apeta- 
lous.’’ Ever since then we have sought an opportunity of examin- 
ing young plants of V. Rafinesguii in order to determine their 
presence or absence. Such a chance was offered for the first time 
‘Am. Mid. Nat. III. 207 et seg. (1914.) 
a —<—- = 
