Hepaticae?\ 



FLORA OE NEW ZEALAND. 



135 



in folia subjecta anguste decurrentibus, perianthio elongato-obovato compresso ore dentato, foliis peri- 

 chsetialibus caulinis conformibus. (Tab. XCVII. Fig. 1.) 



Hab. Northern Island : Bay of Islands ; creeping over Lepidozia Lindenbergii, J. D. H. 



Palhde viridis. Caulis pollicaris. Folia patentia, margine dorsali recto, ventrali arcuato, cellulis rotundatis, 

 intercalaribus minutis in senioribus ssepe obsoletis. 



Nearly resembling LopJwcolea bidentata in size and habit, but readily distinguished from this and every allied 

 species by the form of its perianth.— Plate XCVfl. Fig. 1 :— 1, a plant, natural size; %, a portion of the stem 

 with leaves ; 3, a portion of the stem with stipule, as seen on the ventral side ; 4, a perianth and involucral leaves ; 

 5, a perianth detached : — a " 



Gen. IV. LOPHOCOLEA, Wees. 



1. Lophocolea heterophylloides, Nees, Syn. Hep. p. 157.— Chiloscyphus canaliculars, Hook. fil. et 

 Tayl. Lond. Journ. Bot. 1844, p. 563. G. L. et N.Syn. Hep. p. 710. 



Hab. Northern Island : Bay of Islands, J. D. H. Cook's Straits, Lake Eotoatara, Mohaka Eiver, 

 etc., Colenso ; running streams, Canterbury Plains, Lyall. 



This appears to be a common and variable species. Chiloscyphus canaliculatus is a fragrant variety, with the leaves 

 so arranged as to give a canaliculate look to the stems, but it does not differ from Jungermannia recubans, Tayl., which 

 can hardly be regarded as a variety of L. heterophylloides. The genus Lophocolea is here denned (as in ' Synopsis 

 Hepaticarum') by a terminal triquetrous perianth ; and if, as does sometimes happen, a perianth is formed on a short 

 lateral branch, there is still no difficulty in distinguishing it from the perianth of Chiloscyphus, which is never of a 

 prismatic form, but, in those species in which it becomes highly developed, more of an urceolate figure. These dis- 

 tinctions have not been sufficiently kept in view, so that in the Synopsis itself there may be found Chiloscyphi 

 amongst the Lophocolea, and vice versa. In describing his Chiloscyphus canaliculatus, Dr. Taylor states that the 

 perianth is compressed and bilabiate, but in the original specimen they are triquetrous. 



2. Lophocolea Nova-Zelandice, Nees, G. Let N.Syn. Hep. p. 16S. — L. grisea, Hook. fil. et Tayl. Flor. 

 Infarct. p. 154. t. 64./. 8, et t. 160./. 4. L. subviridis, I. 159. /. 4. L. rivalis, 1. 158./ 7. L. sabu- 

 letoram, t. 158./ 8, et Lejeunia subintegra, t. 160./. 5. 



Hab. Northern and Middle Islands : Dusky Bay, Herb. Lehmann. Bay of Islands, Sinclair. Auck- 

 land and Port Nicholson, Lyall. East Coast and interior, Colenso. 



An extremely variable plant, common in all the Antarctic islands. In all the forms with rounded leaves the 

 stipules are simply bidentate ; but in those in which the leaves become obtusely bidentate the stipule gradually as- 

 sumes the form found in L. bidentata. The L. grisea a, and L. subviridis, differ only in their smaller size from the 

 original specimen of L. Nova-Zelandice in Herb. Lehmann ; L. grisea /3 and Lejeunia subintegra are male plants. 

 Lophocolea rivalis and L. sahdetorum agree in the form of their leaves and stipules, but differ in size, L. rivalis 

 being to all appearance an aquatic state. Besides these there is another form with a habit more nearly that of the 

 European L. heterophylla [Schrad.], and powerfully fragrant, yet which, in all essential characters, corresponds 

 with the other states. The cause of the odour exhaled from this and some other Hepatica is not yet ascertained ; 

 in L. heterophylloidea it is not constantly present, and it appears to be accompanied by a yellow hue, which, like that 

 of some,' u Radula,'i$, imparted to water. 



3. Lophocolea pallida, Mitten ; caule prostrato parce ramoso, foliis ovatis apice obtusis retusis sinu 

 parvo bidentatisve cum amphigastriis quadridentatis utrinque coalitis, perianthio prismatico angulis alato 

 apice angulisque plus minus dentato, foliis involucralibus vel caulinis conformibus vel margine ventrali den- 

 tatis, amphigastrio involucrali ovato bifido laciniis fere integerrimis spinoso-dentatisve. — Lophocolea multi- 

 penna, Hook. fil. et Tayl. Flor. Antarcl. p. 155 (quoad descriptionem perianthii). 



