292 PATAGONIAN EXPEDITIONS : BOTANY. 



Family 14. RESTIONACE^:. 



Perennial, cespitose or rhizomatous herbs with cyperaceous or reduced 

 herbage and mostly dioecious flowers in spikelets like Cyperaceae, but with 

 juncaceous perianth. Female spikelets occasionally having only i flower. 

 Stamens mostly 3, and represented by staminodes in the female flowers. 

 Anthers often i-celled. Ovary i-3-celled; cells i-seeded; seeds ortho- 

 tropous, with small embryo and large endosperm. 



Species 230, most in S. W. Africa and Austral.; few in N. Zeal.; fewer 

 in the Orient; and i in Chili, etc. 



LEPTOCARPUS R. Br. (Schcenodon Labill. p. p.) 



Rhizome creeping. Leaf-sheaths not deciduous. Dioecious (rarely 

 monoecious), 3-merous, rarely 2-merous. Ovary i -celled, i -seeded. 

 Fruit dehiscing on the angles, or indehiscent. Spikelets many-flowered ; 

 the female rarely i -flowered. Scales imbricating. 



Species 21, in S. Afr. and Austr. and stragglers in the Orient, N. 

 Zeal, and S. Amer. 



L. CHILENSIS Gay (Steud. sub Calopsis]. 



Root fibrous, cespitiferous, subsarmentose. Culms erect, strict, simple, 

 nearly i meter high, glabrous ; the sheaths leafless, in pairs mutually em- 

 bracing, obtuse, mucronulate, at length cleft, fuscescent. Apical spikes 

 numerous, the lower remote, smaller or none ; spikelets bracteolate. 

 Bracts oblong-ovate, mostly bifid, somewhat rusty. Sepals of female 

 flowers narrow, the outer obovate, mucronate. Stigmas 3 ; ovary 

 triquetrous. 



(Chili) ; W. Patagon. 



Family 15. CENTROLEPIDACE^E. 



Small moss-like or grass-like herbs, with perfect or polygamous ses- 

 sile, hypogynous flowers in glumaceous spikelets; without perianth; 

 stamens 1-2, with i versatile anther. Ovary i-3-locular, each locule with 

 i pendulous orthotropous ovule. Seeds with subfarinaceous endosperm. 



Species 30, in southern Australia; with stragglers in the Orient, Tas- 

 mania, N. Zeal., Auckland I., and Antarctic America. 



