258 Transactions. — Botany, 



that, but it is also thinner, and sori smaller often oblong and less prominent, 

 more hairy on both surfaces, and stellate hairs with a larger number of rays; 

 the copious scales too are different. When I first detected this plant in the 

 woods on the East Coast in 1846, I noticed only a few specimens, and I 

 thought it was only a " sport " of P. rupestre ; but where I lately found it, 

 it was very plentiful, 



Order IV. MUSCI. 

 Genus 41. Bartramia, Hedwig. 

 1. Bartramia readeriana, sp. nov. 



Stems densely tufted, tall, robust, ascending, ^-inch diameter, 1^-3^- 

 inches long, vaguely dichotomously branched, thickly tomentose with red 

 branched and implexed tomentum ; branches above fascicled, strict, almost 

 glabrous, red. Leaves spreading (some are truly divaricating, at first spread- 

 ing then bent downwards), pale yellow-green, shining, with a short sheathing 

 base, ovate-lanceolate, acuminate, gradually narrowed into a very long hair- 

 like point, serrulate to tips, plaited, minutely papillose, twisted (to the right) 

 when dry contorted ; nerve slender, percurrent ; cells dense, linear, the 

 marginal at the base larger oblong and translucent ; perichaatial leaves 

 broader with lax cells. Fruitstalk 1-1|- inches high, erect, red, shining. 

 Capsule large, inclined or horizontal, ovoid, grooved when dry ; operculum 

 convex, apiculate ; teeth red ; spores very minute. Calyptra 2 lines long, 

 narrow, blackish at tip, apiculate. Inflorescence dioecious ; antheridia 

 capitulate. 



Hab. Among Hepatic^ on dry elevated ridges, open woods, Seventy-mile 

 Bush, between Norsewood and Danneverke, County of Waipawa ; 1882-84 : 

 W.C. 



Obs. I. A species allied to B. pendula, sieberi and comosa ; differing 

 from pendula, mainly in the very long points of the leaves, that are twisted 

 when dry and papillose, and in the erect capsule ; from sieberi, in the 

 shining long-pointed and twisted leaves ; and from comosa in the long- 

 pointed, twisted and broader leaves, which are serrulate throughout, its 

 densely tomentose stems, and apiculate operculum ; and from all three 

 species, also, in the translucent marginal cells at the base of leaves. It 

 appears, however, to be nearest to this last species — comosa. 



Obs. II. This species seems to be scarce ; hitherto I have only detected 

 it in two similar open ridgy spots, growing two-thirds concealed among 

 dense and erect pale Hepatic® [Mastigobryum, sp. nov. ?) ; and then only in 

 small quantities, and rarely found in fruit, although I have visited those 

 places some twenty times in hopes of finding good fruiting specimens. 

 From its dense and shaggy tomentum, and intermixed habit among the 

 Hepatica, and aged appearance, it seems to be of very slow growth. 



