Geophilous Species of Peperomia. 
427 
Figs. 32-41. P. pedicellata, Dahlst. 
Fig. 32. A complete plant, showing the spherical tuber {cm.) with the roots springing from the 
upper surface, the leaves and long inflorescences {s.). Nat. size. No. 3829, J. Donnell Smith, 
in Herb. Kew. 
Fig. 33. A young seedling, showing the pedicellate fruit (/.) and the petiole of the absorbent 
cotyledon (^), the aerial cotyledon {c 2 ) with its somewhat oblique primary root (r.), and the 
apogeotropic lateral root {r x ) which has become horizontal. 
Fig. 34. A slightly younger seedling than Fig. 33, with the seed dissected away, showing the 
leaf-lamina of the absorbent cotyledon, the median primary root and the ascending lateral root. 
Fig. 35. An older seedling, the lamina of the absorbent cotyledon is well seen ; the primary 
root is slightly displaced to one side, and two secondary roots have developed {r x , r 2 ). 
Fig. 36. An older seedling, showing the development of the first leaf ( 4 ) and the lateral position 
of the roots. 
Fig. 3 7. A young seedling, showing the petioles of the two cotyledons and the root-scar {r.) to 
one side of the plumule on the upper surface of the tuber. 
Fig. 38. An older tuber seen from above, showing the scars of the two cotyledons, the first leaf 
and the apical tuft of roots {P.). 
Fig. 39. A fully developed plant seen from the side, the absorbent cotyledon and fruit (/.) are 
still retained. 
Fig. 40. A tuber like that of Fig. 39, in longitudinal section through the points of origin of 
stem {p.) and roots {P.) ; note the curved stele {si.) between these two points. This tuber was 
1*2 mm. long by 1.8 mm. in breadth. 
Fig. 41. Fruit in median -longitudinal section showing the long style; the pericarp is like that 
of P. peruviana. Mag. x 64. 
Figs. 42-45. P. mexicana , Miq. 
Fig. 42. A complete plant with short tuberous rhizome {Ph.), scarcely peltate leaves and 
inflorescences. Nat. size. Mexico, No. 7,111, Galleoti, in Herb. Kew. 
Fig. 43. A fruit showing the long style and peltate stigma {si.). 
Fig. 44. A young seedling with the seed dissected away, showing the two cotyledons, the 
swollen hypocotyl, the primary root, and a horizontal lateral root. 
Fig. 45. A similar seedling showing the leaf-like lamina of the absorbent cotyledon, the 
swollen hypocotyl, &c. 
Figs. 46-49. P. macrandra , C. DC. 
Fig. 46. A piece of a well developed plant with a tuberous creeping rhizome {Ph.), showing 
leaf-scars {Is.), and branch-scars {bs.), and adventitious roots; also the large glabrous peltate leaves 
and an inflorescence. Nat. size. Mexico, No. 4654, Pringle, in Herb. Brit. Mus. The specimens 
in Herb. Kew are much larger with longer leaf-petioles and long inflorescences. 
Fig. 47. A flower with the bract {b.) and a young carpel. 
Fig. 48. A young seedling, the aerial cotyledon has a large thin lamina. 
Figs. 49-50. Arum, sp. 
Fig. 49. A young seedling with its seed {s.). The c first leaf’ {c 2 ) has emerged from the sheath 
of the absorbent cotyledon ( c j). Nat. size. 
Fig. 49 a. The tip or modified lamina (/.) of the absorbent cotyledon seen in Fig. 48; cf. 
Fig. 22, PL XXIX. 
Fig. 50. The lamina of the * first leaf’ — the modified second cotyledon — of an older seedling. 
About nat. size. 
