placenta; tube proper 4 cm. 
2 
pure ^ 
long; throat 14 cm. long; petals^¥/hite , 
according to place attached; 
late, same length as sepals; stamens of varjring lengthU light pale 
anthers light yellow, clustered around pistil; piAxiX 26 cm. long, creamy 
22, 2 to 2.5 cm. long, umbraculif orm , 
white, 4 mm. in diameter; stigma lobes_^ greenish yellow. 
Greenhouse, U. S. Dept. Agriculture, in 1904. 
05.846 Cereus Macdonaldae; flowering May 11, 1912. 
<* •» ' *1 
. n. - ' 'u . • -V 
Noted d-ifferences from 04,l6l3: Calyx oube 17.5 cm. long; sepals 16 
cm. long, 1 cm. or less wide; petals not quite as long; tube proper 5 cm. 
long, throat lOv cm. long; style 26 cm, long, exsert beyond stamens 2 cm. 
stigma 
lobes 22, puberulent, light lemon yellow; 
flower 32,5 cm, long. 
From Botanical Garden. 
