DESOEIPTION OP THE PLATES. 273 



where it is continuous with the joint of the rib, magnified. Fig. 5, a seed with a long superior slender 

 rostrum terminated by a fleshy ring, which surrounds the micropyle and bears a coma of many 

 long elastic hairs j on one side of the seed is the longitudinal raphe proceeding from the basal 

 chalaza, and terminating at the summit in the short funicle above mentioned, by which it is sus- 

 pended. Fig. 6, the same deprived of its coma and showing the same parts. Fig. 7, the embryo 

 enclosed in the albumen. Fig. 8, the embryo extracted, with the terete superior radicle and folia- 

 ceous cotyledons : all natural size. 



Plate XX. 



A. Rhodocalyx crassifolius, portion of a plant in flower. Fig. 1, the calyx. Fig. 2, the same parallel- 



nerved, with the sepals thrown back, to show the basal scales, disk, ovaries, style, and clavuncle. Fig. 3, 

 the corolla cut open, showing the shape and simple dextrorse convolution of the segments and the posi- 

 tion of the stamens : all natural size. Fig. 4, a stamen, magnified. Fig. 5, a follicle of Rhodocalyx 

 rotundifolium. Fig. 6, a seed suspended by a long slender funicle and an apical coma. Fig. 7, the 

 same deprived of the coma and funicle, shown on the dorsal face. Fig. 8, a transverse section of 

 the same, showing it channelled on the ventral face, with the longitudinal raphe and the enclosed 

 embryo : all natural size. 



B. Prestonia tomentosa, portion of a plant in flower. Fig. 1, the pedicellate calyx with its bracteole. 



Fig. 2, the corolla, in bud. Fig. 3, the same, cut open to show the faucial ring and row of five acute 

 appendages in its mouth, the simple segments dextrorsely convoluted, and the insertion of the 

 stamens on a broad pilose ring. Fig. 4, the five stamens cohering in a cone. Fig. 5, a single one 

 ■ detached : all natural size. Fig. 6, a stamen, magnified. Fig. 7, the crenulate faucial ring. 

 Fig. 8, the row of appendages in the mouth of the tube. Fig. 9, the calyx, with the sepals thrown 

 back, showing the scales, disk, style, and clavuncle. Fig. 10, the 2-celled capsule. Fig. 11, a 

 transverse section of the same, showing the double dissepiment and the inflexed seminiferous 

 placentas. Fig. 12, the capsule, beginning to open along the septicidal dissepiment, and the seeds 

 beginning to escape. Fig. 13, a. seed, with its apical coma, shown on its dorsal face. Fig. 14, 

 the same, on its ventral face : all natural size. 



Plate XXI. 



A. Rhaptocarpus odoriferus, portion of a plant in flower and fruit. Fig. 1, a flower with its bract. 



Fig. 2, the corolla in bud. Fig. 3, the same, cut qpen, showing the form and simple dextrorse convo- 

 lution of its segments, and the position of the stamens : all natural size. Fig. 4, a stamen, mag- 

 nified. Fig. 5, the calyx, with the sepals thrown back, to show the multilaciniate inner scale, the 

 disk, ovary, style, clavuncle, and stigmata, magnified. Fig. 6, the lower half of the capsule inverted, 

 and the other half erect. Fig. 7, a transverse section of the same, showing the septicidal dissepiment 

 and mode of placentation. Fig. 8, a seed : all natural size. 



B. Aptotheca corylifolia, portion of a plant in flower and fruit. Fig. 1, the calyx. Fig. 2, the corolla, in 



bud. Fig. 3, the corolla, cut open, showing the simple sinistrorse convolution of the segments, the 

 faucial ring, and the basal insertion of the stamens : all magnified. Fig. 4, a stamen, more mag- 

 nified. Fig. 5, the calyx, with the sepals thrown back, showing the simple inner scales, the disk, and 

 ovary, magnified six times. Fig. 6, a capsule beginning to open at its apex. Fig. 7, a transverse 

 section of the same, showing the septicidal dissepiment and the manner of its placentation. Fig. 8, 

 a seed : all natural size. 



2n 



