Septotheca Tessmannii Ulbrich . 2. 2...) | XXIX 
Spiranthes Beckii Lindl. 2 2. ww dT 
Spiranthes gracilis (Bigel.) Beck. 2... 2. TT 
Spiranthes gracilis var. floridana (Wherry) Correll 11, 111 
Spiranthes Grayi Ames ........... .I1I 
Styrax rigidifolius [drobo & R. EH. Schultes XXXVIII 
Styrax rigidifolius forma yapobodensis Idrobo & 
R.E. Schultes ...........XXXVIII 
Vascular anatomy of Orchid Flowers. . . Figs. 1-11 
[ viii | 
