101 



443 

 Gladhumenia ? Gu 



unaofa, Harv. in Lend. Journ. Bot., 1844, 



J,tar/n !f mema? Gnmiii, Harv. in Lond. Journ. Bot., 1845, 



t! X vi ''• °o;^ ei 'i Au ? tral - 1847, p. 87, t. IK (inexacte) ; Kiitz. 

 lab. Plfyc, 186*, vol. xvii., t. 94. 



CallophyUis Qunnii, Kiitz. Spec. Alg., 1849, p. 746. 



• tfntfioro ffwmut, J. Ag. Spec, 1852, vol. ii., p. 386. 



Frond very delicate, membranous, large, up to 20 em. long 

 pinnate to compound pinnat , pale rosy purple. Main branches 

 --.> cm. wide, deeply pinnate or bipinnate, margins entire rarely 

 fimbriate, apices obtuse. Pinna- irregularly alternate, distichous ; 

 lower ones small narrow, pointed : upper Longer, often compound, 

 apices obtuse. Phallus-structure similar to thai of R. mem- 

 branacra, cortex poorly developed, rosulaf. -areolate arrangement 



not visible, slightly punctate with cells containing brown colouring 

 matter. C ystocarps marginal. Tetrasporangia zonatelv divided 

 scattered in the upper segments of the frond, large, 70 x 30,,. 



Hab. Preservation Harbour, Chalky Bay, LyaU. 



more 



suffice to distinguish this plant from R. membranacea. It is, 

 however, allied to that species and closely resembles it in 

 microscopic characters. The poorly developed cortex, the absence 

 ot an areolate arrangement, the large tetraspores, and the presence 

 or dark cells are all in agreement with R. membranarea. The 

 dark cells in the present species are, however, less abundant and 

 usually of larger size. In both species these bodies are more 

 obvious in some specimens than in others. 



5. Rhodophyllis lacerata, Harv. in Hook. Fl. New Zeal., 1855, 



TJo- 11 '' , P '. 247; ' T ;- Ag - ' *-> ic " ,S76 > P- 366; De Toni Svll. Alg., 



i<Xi »}?'' P ' ' 8ub 1L > nemh) '«»acea, Harv ; Laing Rev. List, 

 UOJ, p. 341. 



Frond very delicate, membranous, of medium size, rosy 

 crimson. Branches 1-3 mm. wide, elongated, entire, pinnate 

 or dichotomous; ultimate branches 1-2 mm. wide, linear, 

 very elongated, apices acute, often bifid ; axils of branches 

 rounded. Thallus composed of two distinct layers, an inner of 

 large cells, two or more deep, arranged parallel to the surface of 

 t he frond, and an outer consisting of a single layer of small cells ; 

 a rosulate-areolate arrangement is -een from above. Veins 



absen t 



tetrasporang 



Hab. On rocks, Port William, South Island, LyaUt Otago 

 Harbour, Laing, 1^46. 



This plant remains little known. The only previous record is 

 that of the single specimen gather. I by Lyall which is now at 

 Kew. The vegetative structure is identical with that of Rhodo- 

 PkyUit, and resemble very closely that of R. acanthocarpa . 

 lhere is little doubt that the specimen r< presents an attenuated 

 A^ m ' simiIar t0 those that are frequently produced in species of 

 Nttophyllum. What the character of the normal form is it is 

 impossible as yet to say, the only known sj>ecies to which it in 

 any way approaches is, as stated above, R. acanthocarpa, J. As. 



