ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
221 
Mosses : — (1) Teichodontium.* * * § Caulis leptodontioides ; folia vaginata 
canaliculato-subulata, angustinervia, e cellulis basi longis angustis in 
membranam luteam conflatis, superne rotundis viridibus crassiusculis 
areolata; theca majuscula, ovalis, macrostoma, pedunculata, operculo 
brevirostri ; peristomium duplex ; externum membrana papillosa, e 
dentibus dense approximatis et dense trabeculatis medio abruptis com- 
posita, internum dentes 16 simplices, lineari-lanceolati, dilute flavi 
glaberrimi, bomogenei. From Bolivia. 
(2) Vlea: f Cespites weissiacei ; folia weissiacea, e basi laxe reticulata, 
latiuscule lanceolata, obtusata v. obtuse brevissime acuminata, nervo 
crasso carinato ante apicem evanido, e cellulis parvis rotundatis superne 
areolata ; theca in pedicello tenui medio erecta parva ovalis, evacuata 
cylindracea truncata ochracea, operculo breviter oblique subulato 
annulo latiusculo revolubili, peristomium simplex ; dentes externi octo 
distantes, breves, late lanceolati, e dentibus binis articulatis conjugati, 
pallide ochracei, intra orificium siccitate inclinantes ; calyptra miuuta 
dimidi ata, operculum solum detegens glaberrima. 
(3) Venturiella, belonging to the Erpodiacese.^ Peristomium simplex ; 
dentes externi 16, per paria approximata, refuscentes, lanceolati-acumi- 
nati interdum apice bifidi et irregulariter articulati, ob papillas obscuri ; 
calyptra Erpodii , longitudinaliter plicata, mitriformis, nuda ; sporee 
majusculse, virides ; reticnlatio folii laxa, pellucida, hookerioides ; folium 
in subulam basi reticulatam ubique hyalinam protractum. From China. 
(4) Triquetrella , belonging to the Zygodontese.§ Caulis tri stick aceo- 
foliosus ; folia dense imbricata, madore subrecurva ; peristomii simplicis 
dentes 16, externi breves, filiformes, simplices, homogeneo-hyalini, nec 
transversim striati nec trabeculati, interdum paulisper fissiles, cornei, 
solitarii v. aggregati. From Eastern Tropical Africa. 
(5) Thysanomitriopsis. |j Habitus Campylopodis capitoflori alicujus, sed 
foliis piliferis, i.e. surculus fertilis coma ditissime fructifera terminatus ; 
capsulas breviter pedicillatse, minutae, cylindricae, perangulataa, leves ; 
calyptra dimidiata, basi fimbriata ; peristomii dentes 16, conum sistentes^ 
piliformes, indistincte articulati, stricti, pallidi, Pilopogonis ; inflores- 
centia dioica. From New Zealand. 
Algae. 
Antherozoids of Dictyota and Taonia.^F — Mr. J. LI. Williams 
gives further details respecting the motile antherozooids of Dictyota 
dichotoma and Taonia atomaria. In the former species each antherid 
is divided into a large number of small cells, the contents of each cell 
forming a single antherozoid. Each has a small round globule situate 
either at the centre or near the periphery ; they do not appear to be 
eye-spots. The antherozoids escape by the dissolution of the walls of 
the antherids. Their motility continues only for a short time (usually 
about ten minutes) ; and under unfavourable conditions they are com- 
* Nuov. Giorn. Bot. Ital., 1897, p. 119. 
t Hedwigia, xxxvi. (1897) pp. 84-144. 
flNuov. Giorn. Bot. Ital., 1897, pp. 245-76. 
§ Oester. Bot. Zeitsclir., xlvii. (1897) pp. 420-1. 
1! Hedwigia, xxxvi. (1897) p. 363. 
Ann. of Bot., xi. (1897) pp. 545-53 (1 pi.). Cf. this Journal, 1897, p. 563. 
