THE PTERIDOPHYTES 435 
The long, silky, yellow or brownish hairs obtained from the bases 
of Cibotium glaucum, C. Barometz, Alsophila lurida, and other 
members of this family growing in Java and Sumatra have been 
successfully used in checking external hemorrhages under the 
names of “‘Pengawar Djambi’’ or “Golden Moss.” 
Famity PotypopiAce&#.—In this family the capsule of the 
sporangium possesses a vertical, incomplete annulus which splits 
ph end 
Fic. 327.—Cross section of the main axis or rhizome of the common brake, 
Pteris aquilina. X8. ep, epidermis; scl, sclerenchyma fibers in hypodermis; 4, 
xylocentric vascular bundles; sc/b, sclerenchyma band composed of lignified fibers; 
r, lateral ridges; pa, parenchyma; x, xylem; s?, sieve tissue (phloem) ; end, endodermis; 
ph, phloem of a vascular bundle. 
the mature sporangium transversely. It includes most of the 
more common land ferns of temperate regions. Outstanding 
genera of this family are Pteris or brake, Polypodium or polypody, 
Adiantum or maiden hair, Asplenium, or spleenwort, Dryopteris 
or wood fern, Camptosorus or walking leaf, Polystichum or christmas 
fern, Pellaea or cliff brake and Phegopteris or beech fern. 
The rhizomes and stipes of Dryopteris Filix-mas and Dryopteris 
marginalis are valuable tape worm remedies. , Those of the former 
species are official under “Aspidi wey the U.S.P. The 
vascular bundles of the stems and leaves of these and other 
« 
