418 TETRANDRIA MONOGYNIA.' PladeVCth 



the mouth of the tube, the lowermost longer than the other three, 

 and bearing an orange-coloured, and longer anther, which when 

 shedding its pollen, is bent over the fissure of the stigma; an- 

 thers of the other three filaments equal, pale yellow. — Style single, 

 length of the short filaments. Stigma two-cleft, segments recurved- 

 — Capsule one-celled, many-seeded. 



3. P. decussata, R.^ 



Annual, erect, four-winged, branches cross-armed. Leaves 

 ovate-lanceolate, three-nerved. Flowers terminal, three-fold, pe- 

 duncled. 



Jieuff. DMnkonf. 



This species resembles P. xirgata, but is a little more robust, and 

 seldom so high. It is a native of the same places. Flowering time 



the same. 



Stem about a foot high, perfectly erect, four-sided; angles very 

 sharp, or rather membrane-winged, smooth, ramous, branches al- 

 ways opposite, cross-armed, in other respects like the stem. — Leaves 

 opposite, spreading, sessile, lanceolate, sharp-pointed, entire, 

 smooth, three-nerved, size various — Flowers terminal, and axillary, 

 peduucled, the terminal flowers three-fold ; the axillary single, larg- 

 er than those of the last species, and white. — Peduncles four-sided, 

 like the stem and branches. — -Calyx large, four-toothed, four-sided, 

 four-winged. — Corol, stamens, 8cc. exactly as in the last species. 



4. P. perfoliata, R. 



Annual, erect, four-winged, Cauline leaves lanceolate, three- 

 nerved ; floral leaves (or bractes) perfoliate. 



Caiiscora, I amarck's Encj/clop. Bat i. 601. 



Kaufsjan Cora, Rheed. Mai. x. p. 103. t. b%. 



A native of India, where it delights in a low moist soil. Flow- 

 ering time the rainy seasron. 



Root ramous, annual.— 5^e/n erect, somewhat four-sided, with 



• Exucum al4tain, Roth. Linn. Syst. Veg. ed. Roem. et Schult. iii. 159— N. W. 



