150 FLORA OF NEW ZEALAND. [Hepatica. 



2. Gottschea tuloides, Hook. ill. et Tayl.; caule disperso procumbente abbreviate subramoso, . foliis 

 imbricatis patentibus apice dentatis, lobo ventrali ovate-lanceolate acute, dorsali breviore ovato apice trun- 

 cate, margine anteriore recurvo. — Land. Joimi. Bat. 1844, jp. 558. G. L. et N. Syn. Hep. p. 626. (Tab, 

 CI. Kg. 1.) 



Hab. Northern and Middle Islands : forests, East Coast, Colenso. On the bark of trees, Port Pre- 

 servation, Lyall. 



Plantse in casspitibus Muscorum etc. repentes. Gaules pollicaros, pallidissime virides. Folia imbricata, lobus 

 dorsalis ventrali dimidio brevior, apice truncatus et dentatus; ventralis 'concavus, margine piano, apice dentatns, 

 et cum apice lobi dorsalis punctis elevatis notatus. Folia involucralia libera, amplectentia. Capmla parva, oblonga, 

 brevipedicellata. 



This small species is readily distinguished from all its allies by the absence of stipules and the presence of small 

 raised points towards the extremities of the lobes of its leaves.— Plate CI. Fig. 1 :— 1, plants, natural size; 2, a 

 leaf ; 3, involucrum and uppermost leaf upon it -.—both magnified. 



3. Gottschea appendiceal a, Kees. G. L.etN. Syn. Hep. p. 14. Jungermannia appendiculata, Hook. 

 Muse. Ezot. t. 15. 



Hab. Northern and Middle Islands : Dusky Bay, Menzies. Port Cooper, Lyall. Auckland, Sinclair, 



etc. Hokianga, Joliffe. 



The perfect involucrum of this fine species is formed by the union of the margins of the uppermost leaves and 

 stipule when present ; towards its base it is overlaid with several pairs of leaves, which are also united : this structure 

 seems to be due to the growing up of the outer wall of the stem itself, after the fertilization of the archegonium, or 

 pistil. The calyptra, which is the enlarged base of the archegonium, is itself attached to the inner surfaces of the 

 leaves, and, as in Symplogyna and Steetzia, it bears on its summit all the sterile archegonia. The structure there- 

 fore of the involucrum of Gottschea differs scarcely at all from that of Polyotus and Sendtnera ; TricJwcolea dif- 

 fers from Sendtnera more in appearance than in characters, for its involucrum is formed in exactly the same manner. 

 That this must be the true explanation of the apparently perforate stem, seems proved by the archegonia, when per- 

 fect, being borne on the axis of the stem ; and it is not until after fertilization that the sterile ones are carried up by 

 the combined growth of the leaves and calyptra : this explanation appears as natural as that which makes the pedicel 

 descend into the axis of the stem to produce an involucrum. In the ' Synopsis Flepaticarum,' Gottschea is regarded 

 as forming a peculiar tribe (Cwlocaules) , from the nature of its involucre, which has been sufficiently commented upon 

 above ; but the ineubous insertion of its leaves seems not to have been apprehended by the authors of that valuable 

 work. 



4. Gottschea splachnopliylla, Hook. til. et Tayl, Flor. Infarct. p. 424. t. 150./. 2. G. L. et N. Syn. 

 Hep. p. 621. 



Hab. Northern Island : summit of Ruahine mountains. 



This species was first found at Cape Horn. The figure of the leaves is not accurate in Flor. Antarct.; they 

 are made out with great difficulty if the specimens are not in a good state, on account of their very fragile and fleshy 

 texture. The true form of the leaf is to have ventral lobes ovate-oblong, its apex truncate, entire ; the dorsal, 

 broadly ovate or semicordate, shorter than the ventral lobe and with its apex also truncate ; the dorsal lobe is so 

 placed upon the ventral as to leave a broad portion of the latter free below it to the base. In the younger stems 

 the leaves vary considerably, and are found with the ventral lobe ovate acute, the dorsal also ovate, with one or two 

 obtuse teeth ; the free portion, below the line of union of the two lobes, is also wider. The stipules in the larger 

 plants are somewhat of a semi-orbicular form, their apices refuse; in the smaller plants they are oblong and bifid. 

 The stems, when prostrate, as the larger usually are, are thickly covered with radicles, which completely hide the 

 stipules and stem itself, but there are no " squamffi," as stated by Dr. Taylor. It is probable that this species is 



