^ 



444 CONTBIBUTIONS FROM THE NATIONAL HERBAEIUM. 



Fertile flower tiubtendinl l>y an oval glume. (Sclericeae.) 



Ferine wpikelet of one hasal i)istilhite flower and one 



or more staniinate flowers, or ru(liin(Mi1s of them 



above it 14. Sclerta (p. 465) 



F(^rtile ppikt^let subtended at base hy a fvw staminate 

 flowers *. ]5. Calyptrocarya (p. 467) 



Fertile flo\v(^r naked, inclosed within a utricle. (Cariceae.) 



Utricle inclosing a long hooked brittle . - 16. Uncinia (p. 4G8) 



Utricle iikclosing nothing but the pistil 17. Carex (p. 468) 



Subfamily III. Mapameae. Flowers all unisexual; the 



t(Tmiual fertile one nakinl, and together with tlie 2 



to 6 inf(^rior and staminate, forming a small spikelet 



with the appearance of being "l-dowtTcd with the flower 



perfect. 



S])ikes compoun<l-])aiiicuhite, subunilx'llate 18. Ilypolytrum (p. 470) 



Spikes gloiiHTate. fonuing a siugh^ <lens(* head 10. ^fflpanin (p. 471) 



ANNOTATED CATALOGTIE OF THE GENERA AND SPECIES. 



1. KYLLINGA Rottb.« 



Spikelet of 4 or 5 glume??; rachiUa jointed above the 2 lowest glumes, thence cadu- 

 cous; glumes 2-ranked; the third euibracing a !)isexual fertile flower, thoae above it 

 empty; hypogynoua bririLb^t^ none; stamens 1 to 3, anterior; styb' biful; nut laterally 

 compressed. — Plants glabrous. Leaves all near the l)ase of Uie stem. Inflorc^scence 

 dens(4y capitate, <*oinposed of 1 to 3 s(^ssile spiki^s, each of an indefinil(^ luunlx-r (^f 

 si)ik(4ets. 



Species 45, distribut<^d throughout the wanner parts of the world. 



KEY TO THE KPKCIES, 



p 



Keel of nut-bearing glume smooth or setulosi^ not wingi'd. (Eukyllinoa.^ 

 Rhizome elongated, horizontal, stoutisb. 



Leaves grassy, with long-attenuate apex 1 . K. brevifoUa. 



Leaves rather short, aljruptly narrowed at ap(*x 2. K. pungens. 



Leaves none, or hardly any, scariously colored 8. A', pcnnnana. 



Annuals or biennials, the rhizome very slu)rt or wanting. 



Nut-bearing glume glandless, setulose-scabrous on the keel. 4. A^ pnmila. 

 Nut-bearing glume with scattered red gland^^, smooth on 



the keel 5. K. odorata, 



1. Kyllinga brevif olia Rotth. Descr. & Tc. 13: pL .;./. ,?. 1773. 

 Schoenus colorahis L. Sp. PI. 1: 43. 1753, in part. 

 DiHTitiBUTioN: Around th<» world in the warmer regions. 



Costa Rican collkctions; Tuis, altitude fiW meters, Ton rhiz i)218. 



2. Kyllinga pungens Link, Kort. 15erol. 1: 32fi. 1827. 

 Kyllinga oUusala J. S. & C. R. Rresl, Rel. Ilaenk. 1: 183. 1828. 

 Distribi'Tiun: In South America frequent; in Africa and Asia rare. 

 Costa Ricax collection': San Carlos, Tond i iz 25H7. 



3. Kyllinga peruviana Lam. Encyc. 3: 3(>(). 1789. 

 Kyllinga raginata J Aun. 111. 1: 148. 17!)L 

 Kyllinga capitata Reauv. Fl. d'Owar. 1: pL SI. 1804. 

 Kyllinga aphylla KunXlij Knum. 1: 127, 1837. 



" The character of the genus here, as also in the case of each of the followingj is 

 drawn up as having in view no other than the Costa Rican species. 



