1917] BRYAN—ARCHEGONIUM OF CATHARINEA 17 
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12. SCHIMPER, W. Pu., Versuch einer Entwickelungsgeschichte der Torfmoose. 
Stuttgart. 1858. 
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pls. 1-4. 1913. 
EXPLANATION OF PLATES I-VIII 
All figures were drawn with the aid of Abbé camera lucida at table level, 
and, being reduced one-half in reproduction, now show the following magni- 
fications: figs. 1-27, 870; figs. 28-35, 64-68, 700; figs, 36-44, 63, 690, 70, 
72-74, X550; figs. 45-62, 410; fig. 71, X 225. Abbreviations are as follows: 
a, base of older archegonium; /, leaf; p, paraphysis. 
PLATE I 
Fic. 1.—First archegonium arising from apical cell 
Fic. 2.—Young archegonium with abnormal cross walls ‘ising at base of 
ac archegonia. 
Fic. 3.—Typical development by apical cell with 2 cutting faces. 
Fic. 4.—The same, slightly older. 
Fic. 5.—The same, still older. ‘ 
Fic. 6.—Development by walls which do not quite intersect; bases of» 
older archegonia seen on each side of young archegonium. ae 
Fic. 7.—Typical ieee older stage. 
_ Fic. on 
Fic. 9 lation t ] well shown. 
Fic. 10—First archegonium arising ‘from apical cell region which has 
now seg larly in terminal cell the first of the 3 oblique walls origi- . 
2 etal a ag ee 
ae HA t1--Tn terminal coll the 3 oblique walls heve:c t off per cet ae 
"fests pul foc etary axial col wehin. 
_ Fic. 12.—Primary : axial cell has divided into cover cell and central cell eS ae 
_ Fic. 13.—The same, 
Fic. 14.—Central cell dividing to form ey neck canal call and ven- ee 
tral cell. a 
Fic. 15—Division of central cll has just ben completed cover cell has : 
noel es a 
: ei Pee Bo su 
Pe Pins ca cl 
Fe ihe same; cover cell has formed = ress segm: 
