safford: a new species of annonaceae 463 



width as the lower ones. The carpels are about 2.3 mm. long and 

 1 mm. broad, and the stigmas, which are somewhat flattened and 

 constricted at the base are about 0.5 mm. square. The mature 

 carpidia owe the variation in their shape to the abortion or imper- 

 fect development of one or more of their ovules. Those with a 

 single seed and globose in shape are about 1 cm. in diameter; 

 the largest containing 3 to 4 seeds are 22 to 25 mm. long and 10 

 to 13 mm. in diameter. 



Papualthia Mariannae is named in honor of Maria 4nna of 

 Austria, wife of Philip III of Spain-, the patron and protector of 

 the natives of Guam, for whom the Marianne Islands were named. 



EXPLANATION OF FIGURES 



Fig. 1. Papualthia Mariannae from type material, showing branches and leaves 

 and a single flower natural size, a, flower with one outer petal removed, showing 

 the 3 inner valvate petals covering the genital parts, with a few stamens visible 

 between the somewhat unguiculate bases; b, subterminal flower, showing the two 

 bracteoles on the peduncles; c, short stamen from the base of the androecium, d, 

 longer stamens from the upper or inner part of the androecium, ventral and dorsal 

 views, showing the two pollen sacs dehiscing by a longitudinal slit and capped by 

 the transversely expanded connective; e, carpel, clothed with appressed hairs and 

 terminating in a short broad truncated stigma, a, b, scale about 2.5; c, d, e, scale 

 10. 



Fig. 2. The fruit of Papualthia Mariannae. a, spheriod torus bearing 5 carpi- 

 dia and marked with scars made by the pedicels of fallen carpidia; b, seeds from a 

 4-seeded earpidium; c, discoid seed seen from above; all natural size. 



