532 
5. 
6. 
7: 
ag 
al 
fe 
pal 
on 
BOTANICAL GAZETTE [DECEMBER 
FARMER, J. BERTRAND, The cise spindle in the spore mother cell of 
Pellia epiphylla, Ibid. 15:431-433. 
Jounson, D. S., The development ma velationihin of Monoclea. Bor. 
GAZ. 38: {8e-a0% 1904. 
LertceB, HusBert, Untersuchungen iiber die Lebermoose, “ae 3, Die 
frondosen Jungermannien. Leipzig. 1877. 
cCorMICK, FLoRENCE A., A study of Symphyogyna aspera. Bor. Gaz. 
58:401-418. 1914. 
Mrvake, K., Makinoa, a new genus of Hepaticae. Bot. Mag. Tokyo 13: 
21-24. 1890. 
Moore, A. C., The mitoses in the spore mother cell of Pallavicinia. Bot. 
Gaz. 36: 384-388. 1 1903. 
, Sporogenesis in Pallavicinia. Ibid. 40:81-96. 1905. 
ScurreNReE, V. ERG in ENGLER and PRANTL’s Natiirlichen Pflanzen- 
familien 1:1-144. 
-Daiereadienas iiber Mérckia Flotowiana und iiber das Verhaltnis 
der Gatiunees Mérckia Gott. und Calycularia Mitt. zu einander. Oesterr. 
Bot. Zeitschr. 51:41-51. 1 
. STEPHANI, F., Species Hepaticarum. Memoires de L’Herbier Boissier. 
1900. 
. TANSLEY, A. G., and Cuicx, Ep1tu, Notes on the conducting tissue system 
in Bryophyta. Ann. Botany 15:1-38. 1901. 
EXPLANATION OF PLATES XX-XXIV 
Pallavicinia Lyellit 
Fic. 1.—Thallus with antheridia; X1o. 
Fics. 2~7.—Stages in development of antheridium; 630. 
Fic. 8.—Older antheridium; X62. 
Fic. 9.—Young antheridium with involucre; 46. 
Fics. 10-20.—Stages in development of archegonium; X 520. 
Fic. 21.—Perianth before fertilization; 
Fic. 22.—Archegonium showing elongation of neck; X 50. 
Fic. 23.—Median longitudinal section of archegonial group; X25. 
Fic. 24.—Cross-section of neck of archegonium; X 520. 
1G. 25.—Mature archegonium showing 18 — — des: X 260. 
Fics. 26-28.—Stages in development of emb: 
Fic. 29.—Older embryo showing haustorial ral nit differentiation of 
Sporogenous tissue; 50; sketch of same stage; X8. 
Fic. 30 i Deubowas of sporogenous tissue; X50; sketch of same 
stage; <8. 
Fic. 31.—Sketch of ‘idee sporophyte; <6. 
Fic. 32.—Sporophyte containing mature spores and elaters; <6. 
Fics. 33-37.—Stages in development of spore mother cells; X 520.- 
