56 



Fig. 38. Savastana .odorata (L.) Scribn. (Hierochloe borealis R. & S.). 

 VANILLA-GRASS. — a, A spikelet showing the broad and nearly equal outer 

 glumes: 6, the same with the outer glumes removed, showing the scabrous 3d 

 and 4th glumes; c, palea with stamens; d, the pistil. Figs. 84, of Bui. 7, and 

 410, of Bui. 17, illustrate other species of this genus. 



38. SAVASTANA Schrank, Baier. Fl. I: 100,337. 1789. (Hierochloe J.G.Gmelin. 

 1747). Spikelets 3-flowered, the terminal flower hermaphrodite, the others 

 staminate; rachilla articulated above the empty glumes. Glumes 5; first two 

 empty, nearly equal, and about the length of the spikelet, acute, smooth; the 

 3d and 4th about equaling the 1st and 2d in length, awnless or short-awned; 

 the 5th inclosing a hermaphrodite flower, and becoming somewhat indurated in 

 fruit. Palea nearly as long as the glume. Stamens in the male florets, 3; in 

 the hermaphrodite flower, 2. Styles distinct, rather long, stigmas plumose. 

 Caryopsis included in the upper glume, free. Fragrant, perennial grasses, with 

 flat leaves, and usually rather small and pyramidal, terminal panicles. 



Species about 10 or 12, in the cooler temperate and arctic regions of both 

 hemispheres and high mountains within the tropics. 



