518 



CXXIX. MONOTROPE^. 



■popUtjs europwa. 



Hypopi 

 PentamerouB diagsram. 



Mypopi^s. Hypopitys. 



Tetramerous diagram. Androecium and pistil (mag.). 



h-A-celled, many-ovuled. Fetjit capsular. Seeds numerous, minute. Embeto undi- 

 vided, minute.-^Par<isUic fleshy leafless scaly herbb. 



Perennial heebs resembling Orohanche, simple, flesh j, parasitic on the roots , of 

 trees, never green. Leaves 0, replaced by alternating scales. Elowees 5 , sub- 

 regular, sometimes solitary and 5-merous, sometimes in a raceme or spike, the ter- 

 minal 6-merous, the others 4-merous. Calyx 6-partite, persistent, sometimes 0, or 

 replaced by bracts. Corolla hypogynous, white or pinkish, persistent, of 5-4 petals 

 gibbous at the base, free or more or less cohering into a 5-4-fid corolla. Stamens 

 10 or 8, inserted on the receptacle, sometimes accompanied by filiform appendages; 

 anthers 1-celled, peltate, and opening by a transverse slit; or 2-celled, cells with a 

 basal awn, opening by longitudinal slits, or awnless and opening by pores. Ovaet 

 free, ovoid or sub-globose, 4-5-celled, with 10 glands at the base; style simple, 

 straight, hollow; stigma discoid, margined; ovules innumerable, on fleshy axile 

 placentas filling the cells. Capsule 4-6-celled, with 4-5 loculicidal semi-septiferous 

 valves ; placentas fleshy. Seeds numerous, minute, sub-spherical ; testa loose, reti- 

 culate. Embeto undivided, minute. 



Monotropa. 



PRINCIPAL GENERA. 

 Hypopitys. Schweinitzia. Pterospora. 



Monotropece approach Ericinecs, and especially Pyrolacece, in their polypetalous or sub-polypetalous 

 diploatemonous corolla, their stamens distinct from the corolla, their anthers openiog by pores or trans- 



