BOOTAN MOUNTAINS. 



suture has two fascicles distinct from the stalk of the ovary ! 

 these supply the ovulura which is pendulous from the upper end 

 of the cell, and thence pnss into the style, on opposite side of 

 which they take their cou. se, towards the stigma they become 

 ramified as in all other Rosaceae. This is the only instance 

 I yet know in which the styloid vessels are two in a simple 

 cajpellum, and it is the only instance I know of, in which they 

 have a similar origin. It invalidatis to acertain extent all 

 my ideas about the importance of the number of the vascular 

 fascicles of the style. The petals are convolute in cestivat. The 

 sepals imbricate. 



The stamens are a good deal like those of Punica, but here 

 the connective is flat, not sphoeroidal as in that genus. 



The origin of the stamina is oniy from the outer border of 

 the conical disk, rendering the origin of these organs in Punica 

 still more curious and singular. The stipulse are, it appears 

 to me, nothing more than the lowermost foliolis much reduced 

 in developement ; if this be true, all Pomacea have pinnate 

 leaves, at least they may be expected to have such, see Ce- 

 rasus etc in which the stipulis are adnate to the petiole, if it 

 be true too the stipellse represent abortive leaves, so that a sim- 

 ply pinnate stipellate leaf is realy douubtly pinnate. This 

 is worth consideration. 



The tube of Rosa is not calycine, for this reason, that no 

 instance is known of carpella arising from the tube of the 

 calyx. Hence it is torus ; this examj^le quite subverts, the 

 usual ideas of the nature of inferior ovaria etc. If all inferiority 

 arises from a development of a torus into a cup, which cup 

 coheres with the ovarium, it follows that many supposed gamo- 

 sepalous calyces are really and truly polysepalous. And it 

 follows that in such cases, no calyx is gamosepalous in which 

 the union of the sepals is not carried above the exsertion of 

 petals or stamina, a, and 6. Fig. 21 are instances the latter, 

 being truly gamossepalous. The carrying up of the apparent 

 calyx beyond the ovaria, is of no account in settling whether 

 a calyx be gamo or polysepalous : of this Punica is a 

 striking instance. 



The idea of such instances arising from modificalions of 



