86 BARTftAMIA. 



are disposed, as Mohr and the Editor of the last edition of 

 Flora Lojidinensis have done, to consider them only varie- 

 ties. Schwaegrichen has represented the leaves of the 

 var. a. broader and shorter, and less serrated than our spe- 

 cimens exhibit them. 



2. B. Ithyphylla ; stems short ; leaves rigid, erecto-patent, su- 



bulato-setaceous, almost entire ; the nerve half way up pass- 

 ing into the substance of the leaf , straight when dry ; fruit- 

 stalks much elongated. (TAB. XXIII.) 



B. ithyphylla. Brid. Muse. v. 2. 1. 1 ./. 6. Engl. Bot. 1. 1 / 10. Schwaegr* 

 Suppl. t. 60? B. pomiformis. Swartz. 



HAB. Dry banks in mountainous situations. 



The stems are generally about half an inch in length, 

 growing, as in all the species of the genus, in a tufted man- 

 ner. Its straight and rigid leaves, and their more glaucous 

 colour, will even at first sight distinguish this from the small 

 varieties of B. pomiformis ; and on a closer examination a 

 still greater difference may be discovered in their structure. 

 They are very narrow, scarcely at all serrated, and only to- 

 wards the extremity ; and what is more remarkable, the 

 nerve, when it reaches about half way from the base, dilates 

 and unites with the substance of the leaf. Hence it be- 

 comes thick and rigid, remaining nearly as straight when 

 dry as when wet, which is never the case with the preceding 

 species. This conformation of the leaf is not represented 

 in the figures of Schwaegrichen ; and most of those of the 

 plant itself are so much larger than the specimens we have 

 seen, that we cannot help quoting his .synonym with a mark 

 of doubt. 



3. B. gracilis ; stems elongated; leaves recurvo-patent, lanceo- 



late, canaliculate, serrated; fruitstalks lateral from innova- 

 tions. (TAB. XXIII.) 



B. gracilis. FICrke in Schrad. Journ. Engl. Bot. t. 1826. B. (Ede<, 

 riana. Swartz in Schrad. Journ. B. CEderi. Schwaegr. Suppl. t. 59,. 

 Moug. et Nestl. n. 326. B. longiseta. Brid. B. grandiflora. Schivaegr, 

 Suppl. t. 58. 



HAB. Rocks in alpine districts. 



This, as do most of the other species of the genus, varies 

 considerably in length, from one to two or even three inches. 

 It is known by its deep colour, its short, patent or recurved 

 and rather distantly placed leaves, and by the fruitstalks, 

 which by the innovations of the stems have a lateral ap-? 

 pearance, and scarcely exceed the tops of the branches. 

 B. longiseta of Bridel^ we believe, is generally allowed tq 



