COROLLIFLOR^ 



229 



himalaica is an under-shrub common in Darjiling, 

 with unisexual umbels about the middle of the upper 

 Surface of the leaf, and also near about the apex of 

 phyllodes (fig. 198). 



Nat. Order 18. Cor- 

 nacece. — For the most 

 part shrubs or trees 

 nearly allied to Umbeili^ 

 fercB, from which they are 

 easily distinguished by 

 simple decussate leaves, 

 tetramerous flowers, and 

 fleshy fruits. The in- 

 ferior ovary made up of 

 2 carpels does not form 

 a fruit like that of Um- 

 bellifercB. Cornus capita 

 is a tree with decussate 

 simple leaves and yellow 

 heads (umbels) of scent- 

 less yellow flowers, each 

 head having an involucre 

 of four large white bracts, found in the hills near 

 Dera Dun and Darjiling. 



Fig. 198. — Helivingia himalaica 

 i", Inflorescence, f. Flower. /, PhyUodes. 



Sub-class 3. CoROLLiFLOR/E or Gamopetal^ 



Nat. Order i. Rubiacece. — Trees, shrubs, or herbs, 

 erect or twining, unarmed or armed. Leaves simple, 

 opposite, quite entirej with interpetiolar stipules, 

 sometimes whorled owing to the interpetiolar stipules 

 being rendered foliaceous. Flowers regular, usually 

 tetramerous. Sepals connate into a superior calyx. 

 Petals epigynous, connate, lobes 4, sometimes 5. 

 Stamens epipetalous, equal to the lobes of the corolla. 



