DR. S. O. LINDBERG ON ZOOPSIS. 189 
the series of Jungermanniacez, and the male plant is also unde- 
scribed, I think it will not be out of place to give first a complete 
description of the whole plant. 
Planta thalloides, Phyllocactum vel Epiphyllum in memoriam haud male 
referens, alba, pellucida, in sectione transversa oblonga vel elongate 
oblonga, ideoque complanata. Caulis bifurcatione apicis ramosus, 
ramis elongatis, maxime pellucide areolatus, cellulis levissimis inflatis, 
latere dorsali e seriebus duabus vel tribus cellularum corticalium for- 
matus, latere ventrali e seriebus 6-8 cellularum multo minorum corti- 
calium «dificatus, fasciculo centrali cellulis 8-12, pleurenchymaticis, 
angustissimis et longissimis, optime distincto ; latere ventrali ad se- 
eundum quidque folium rudimentarium in linea mediana, fasciculum 
centralem obvelante, adsunt quatuor cellule minores, quam superiores 
et inferiores medianz, ad quas quatuor minores cellulas interdum, 
presertim infra apicem caulis vel ramorum, affixe sunt duz alize mi- 
nimæ et prominentes cellule, que sine dubio amphigastrium repre- 
sentant, et eisdem locis penicillus radiculorum interdum progreditur, 
ut et ramulus fertilis vel androecium. Folia maxime rudimentaria, 
disticha et alternantia, solum e cellulis duabus vel tribus, maximis, 
subglobosis formata, sed setulam apicalem, ab auctoribus descriptam, 
nullibi invenimus in speciminibus nostris Tasmanicis, Aucklandicis, vel 
Javanis. Ramulus fertilis brevissimus, ad basin vel medium caulis e 
latere ventrali in linea mediana ejus egrediens (confer supra), ad basim 
parum radicans et haud foliatus, superne tribus paribus accrescenti- 
bus bractearum obtectus, que bractez sunt oblongæ, in ipsa basi 
fissze, segmentis subulatis, incurvis, e duabus seriebus cellularum maxi- 
mam partem constructis ; amphigastria nulla adsunt, sed in linea me- 
diana ventris cellule alternatim inter bracteas prominentes (confer 
supra). Colesula* obconico-oblonga, laxissime texta, teres et sine 
plicis, apice ad tertiam partem altitudinis irregulariter 6-8-lobata, 
segmentis subulatis, incurvo-conniventibus. Calyptra maxima, gy- 
nomitriea. Seta sat brevis, crassiuscula, laxissime texta. Theca glo- 
* As we now know, the “calyx” or “perianthium” of Liverworts does not 
exist previous to the pistillidia, but grows out after these female organs, ina ring 
from the receptacle on which the pistillidia are fixed. Its development is thus 
Posterior; and it serves only as an external sheltering cover for the fruit during 
its development. It therefore cannot be regarded asa part analogous to the 
calyx or perianthium of higher plants, but is an organ peculiar tothe Hepatice, 
though in them not always present. Already (in 1793) in his now too much 
neglected work < Elementa Botanica,’ iii., Dr. N. J. de Necker used for it the 
term colesula ; and after him M. B. C. Dumortier, in his important publications 
' Commentationes Botanicz, 1823 (the preface is dated July 3, 1822), * Sylloge 
Jungermannidearum Europæ, 1831, and * Recueil d'Observations sur les J unger- 
manniacées, Fasc, I., * Révision des Genres," Tournay, 1835. And this term 
colesula Y shall hereafter adopt. - 
