192 



** Leaves lanceolate to linear, not strongly veined, thick and rough. 



t Leaves smooth ; scape smooth or slightly hairy. P. eriopoda. 



tt Leaves and scape slightly pubescent. 



j Capsule circumscissile at the middle, seeds black; hiliim not at 



centre of seed. P. decipiens. 



+i Capsule circumscissile below the middle ; seeds dark brown ; hilum 



at centre of seed. P. maritima. 



***■ Leaves lanceolate, smooth ; capsule circumscissile below the middle ; seed. 



light brown. P. Tweedyi. 



32. Flowers various ; stamens, 4 ; seeds more or less anther shape in cross section. 



■■ Corolla not closed over fruit ; leaves lanceolate to linear. 



t Leaves lanceolate ; scape grooved, slightly hairy; seeds yellow, surface 

 smooth. P. lanceolata. 



tt Leaves linear; scape not grooved, densely hairy. 



+ Capsule twice as long as calyx ; seeds yellow, surface smooth. 



P. minima, 

 tt Capsule slightly longer than calyx; seeds dark brown, surface 

 pitted. P. Patagonica. 



*^* Corolla closed over fruit ; leaves ovate to lanceolate. 



t Capsule oblong, circumscissile below the middle; seeds black. 



P. hirtella. 

 tt Capsule ovoid, circumscissile at the middle ; seeds yellow. 



P. Virgin ica. 

 ttt Capsule oblong, circumscissile below the midcjie; seeds dark red. 



P. rubra. 



?3. Flowers polygamo-dioecious; stamens, 2; corolla closed over fruit; seeds 



irregularly lobed in cross section. 



* Leaves linear to filiform, smooth or minutely pubescent, scape very slender. 



t Capsule ovoid, circumscissile at the middle; 4 seeded; seeds If mm. 



X 2 mm., P. elongata. 



tt Capstile conical, circumscissile below the middle; 10-28 seeded; seeds 



I mm. X I mm., P. heterophylla. 



ttt Capsule conical, circumscissile below the middle, 5 or 6 seeded; seed, 



li mm. X 5 mm., P. Bigelovii. 



