MOy^OON FLORA AT CASTLE ROCK. 



486 



to transparent lilms, and an investigation of the cytology of their leaves 

 would probably show that there is practically no diflerentiuted epidermis, 

 and largo inter-cellular spaces. 



Below will bo found a note showing the difi'erences between the new 

 species of Impotietis and I. kleinii. 



A NEW SPECIES OF BALSAM. 

 I. KLEINII, Wt. and Aru. Impatiens, sp. nova. 



Habit— 2-12 in. high. 

 Leaves — 



shortly petioled ; 



base narrowed into the petiole ; 



base of leaves with one or 

 two glands on each side. 



Note. — It has been assumed that 

 these glands are metamorphosed 

 stipules, but they are marginal on 

 the leaf base, and often more than 

 one. They seem more probably to 

 represent a glandular development 

 of the basal, and sometimes also the 

 suprabasal, serrature of the leaf 

 margin. 



serratures of leaf-margin very 

 shortly subulate. 



Pedicels quite glabrous. 



Flowers : — 



dorsal petal slightly puberu- 

 lous; 



corolla uniform pink or white, 

 only slightly marked with darker 

 colour. 



Habit— 8-14 in. high. 

 Leaves — As in kleinii, but usually 

 longer and more parallel-sided ; 



lower leaves almost sessile, 

 upper quite sessile ; 



base of lower leaves narrowed 

 into the short petiole, base of upper 

 leaves increasingly rounded up to 

 quite cordate. 



base of leaves always e-glan- 

 dular. 



serrature more longly subu- 

 late. 



Note. — This is a rather uncertain 

 characteristic. 



Pedicels with two distinct lines of 

 pubescence. 

 Flowers : — 



dorsal petal markedly pub- 

 escent ; 



corolla 

 cuous darker 



pink with a conspi- 

 line down the inner 

 edge of each of the lip-petals. 



l\ipe capsule not seen ; immature 

 capsule as in kleinii, but longer. 

 Seeds as in kleinii. 



There seems little doubt after a careful examination of many fresh speci- 

 mens that we have here two distinct species. Balsams being often endemic 

 in small areas, it is possible that the new species is not widely distributed. 

 On the other hand, since Hooker (followed by other botanists) says that 

 the glands at the base of the leaves of /. kleinii are sometimes absent, there 

 seems reason to believe that the two species are mixed up in herbaria. 

 The new species can be distinguished at once by the lines of pubescence on 

 the pedicels, the sessile upper leaves with cordate base, and the absence of 

 glands. 



It is proposed to name and describe the new species in a later issue 

 along with some other new species in other families. 



21 



