Intrafascicular Cambium in Monocotyledons, 43 
Two years later Miss Sargant 1 added to the records already made by 
Froken Andersson for the Liliaceae and Scitamineae, by describing cases of 
cambial development in certain seedlings belonging to these orders. She 
observed intrafascicular cambium in the hypocotyl of Yucca arbor escens , 
V. glories a, and Y. aloifolia , the cotyledonary bundles of Milla , Dipcadi , 
Galtonia , Alhuca , and Fritillaria , and the plumular leaves of Elettaria and 
Musa, 
Observations. 
The bundles of the young inflorescence axis of Eremurus himalaicus , 
Baker, one of the Asphodelinae, show cambial activity very clearly. In an 
extremely young inflorescence axis, less than 5 cm. long, dissected out of the 
Fig. 1. Fig. 2. Fig. 3. 
Figs. 1-3. Transverse sections of vascular bundles from inflorescence axes of Eremurus 
himalaicus , Baker. 1. A bundle from the flowering region of an axis gathered May 7, showing 
cambium. The phloem is not fully differentiated. 2. A bundle from the region below the lowest 
flowers of the same axis, showing secondary phloem in process of differentiation into sieve-tubes and 
companion cells. 3. A mature bundle, from the flowering region of an axis gathered on May 28, in 
which cambial activity has practically ceased, cb, cambium ; ph, phloem ; pph, protophloem ; 
px, protoxylem. x 275. 
terminal bud in February, cambium was recognized, but the most favourable 
time for observing it seemed to be at the end of April or the beginning of 
May, when many of the axes exceeded half a metre in height. Fig. 1 
shows a bundle from the flowering region of an inflorescence gathered 
on May 7. Here cells of a meristematic appearance, arranged in radial 
rows, intervene between the xylem and phloem, while the phloem is not yet 
differentiated into companion cells and sieve-tubes. In bundles from 
1 Sargant, E. ( 1908 ). 
