730 PATAGONIAN EXPEDITIONS I BOTANY. f 



SARMIENTA REPENS Ruiz & Pav. 



Leaves broad, ovate-elliptical, subentire. Pedicels longer than the 

 leaves, 2-bracteolate above. Stamens and style twice as long as the 

 corolla. 



Family 103. MARTYNIACE.E. Unicorn-plant Family. 



Viscidly secreting herbs, with chiefly opposite leaves and terminal 

 racemes of zygomorphic sympetalous flowers, having 4 didynamous sta- 

 mens and a staminode (rarely 2 stamens and 3 staminodes). Ovary 

 superior, i -celled, with 2 parietal placenta, or falsely 2-4-celled. Capsule 

 horned, with soft, deciduous pericarp. Seeds pendulous, with thick, rugose 

 testa, no endosperm. 



Species 9, S. Amer. and Mex. 



PROBOSCIDIA Schmid. 



Prostrate herbs, with corolla enlarging from the base, narrow-campanu- 

 late. Stamens 4. Capsule dehiscing above the base of the horn, and 

 dividing below into halves. Seeds many, with plain coat. 



Species 6, Texas to S. Amer. (Fig. in Eng. & Prantl, iv, 3$, p. 266, 

 H-K.) 



P. LUTEA (Lindl. sub Martynia] Stapf. 



Leaves cordate-orbiculate, subdentate, glandular-pubescent (as is the 

 stem). Horn much longer than the pericarp. Flower large, yellow. 



(Brazil ; Paraguay) ; N. Patagon. 



Family 104. LENTIBULARIACE^E. Bladderwort Family. 



Aquatics or bog-herbs, with leaves basal and tufted, or floating, or 

 reduced to scales; and perfect, zygomorphic, sympetalous flowers, solitary 

 or racemose on erect scapes. Calyx 2-5-partite. Corolla bilabiate, the 

 upper lip usually erect, the lower large and spreading, with palate and 

 spur. Stamens 2, anther-sacs confluent. Ovary superior, i -celled. Style 

 short, stigma 2-lobed. Seeds numerous, without endosperm. 



Species 160, in warm and temperate climates. 



PINGUICULA Linn. 

 Acaulescent, terrestrial herbs, with basal, entire leaves and naked, i- 



