'. . / ^ -^ '^ ". 



CLARKE THE CYPEEACEAE OF COSTA RICA. 463 



149 



i 



(I 



Rynchospora prcshana Steud. loc. cit. 



Rynchospora pohliana Steud. loc. cit. 



DiSTRiiiLTiON; From Mexico to Brazil, ratlier common, 



Costa RicAN ooLLECTiox: Sun Jose, altitude 1,100 meters, Tonduz i:V2. 



I. Byncliospora cyperoides (S\v.) Mart. Denkschr. Acad. Wisa. Mucm 



1S1(M7. 

 Schoenns cyperoides Sw. Prod. Veg. Ind. Dec. in. 1788. 

 Schoenusfragiferus Rudge, PI. Guian. 15. pL 17. 1805. 

 Rynchospora polycephalaW ydler; Kuiith, Enum. 2: 291. 18:5 

 Ephippiorrynchinm polycephahcm. Necs in Mart. Fl. r>ras. 2': 134. pi. 12. 1842, 

 Distributlon: Tropical Africa, rare; in America and tlie West Indies, frequent 

 Costa Ricax collection: Guanacaste, PUtier 2707. 



3, Rynchospora aurea Vald, Fnum. 2: 229. 180( 

 xScirpiis corymhosHs L. Amoen. Acad. 4: 303. 175^>. 



Schocnus sHvinamcnHis Rotth. Descr. & Tc, 68. pi. 2t.f. 1. 1773. 

 Calyptroslylisfascicnlaris Xcos in Mart. Fl. Bras. 2^: 139. 1853. 

 DisTiuiiUTioN: Tropical regitma of all continents, very common. 

 Costa Rican collection: riUlcr & Tonduz in B^rnsselH Herbarium. 



4, Rynchospora polyphylLa A'abl, Enum. 2: 230. ISOG. 

 Schoenm polyphylhis Vahl, Eclog. Am. 2: 5, 1798. 

 Mitrospor(rpolyphyllal^eiiS,\Ai\^v^{}\\Q\ 295, 1834. 



Rynchospora costaricensis Boeckl. AUgem. Bet. Zi^itrich. 2: I H). 1890. 



Distribction: Central America, \Yest Indies, Veniv.uela, frefjuent. , 



Costa Rican collections: Buenos Aires, ritUer 3G48; Boruea, altitu<l(> 450 meters, 



TonduzUS'i. 



5, Rynchospora schiedeana Kunth, Enmn. 2: 300. 1837. 

 Calypfrosfylis paniculatalAvhm, Dansk. Vid. Selsk. Skr. 2: *>1. 1849. 



A meter liigh; leaves 15 mm. wide; puiicle 50 cm. long, 10 cm. wide; coryml)s 

 decompound, spik(4ets subsolitary, 7 to 8 mm. long, Ktyle scarcely divided; nut 

 broadly ellip.soidal, smooth, lightly cancellate; beak long-conical, of three-fourths 

 the length of the nut. 



Di8triiu:tion: Mexico. 

 5a. Rynchospora schiedeana varica C. B. Choke, subsp. !u»v- 



Rynchospora schiedeana llemA. Biol. Cenlr. Am. 3: 467. 1885, synonyms excluded. 



Branches of the terminal panicle sev(>i-al, long, slender, divaricate, crowned at 

 Bummit with pyramidal panicles. 



Tyi)e U, S. National Herbarium nn. 578583. 



Dihtrib!^tu>n: Mexict>, Costa Rica. 



Costa Rh^an collection: El Cop^^y, altitude 1,800 meters. Tonduz U73H. 



i\. Rynchospora locuplesC. B. Clarke, Engl. Bot. Jahrb. (34) BeibL 78: 5. 1904. 

 Stem a meter higli; leaves 12 to 17 mm. wide; pani(4e 40 cm. long. 12 cm. broad, 

 rather dense, excessively many-flowered ; .partial panicles pyramidal, rigid, com- 

 pound; spikelets ln(h^finit(4y many, 3 lo 4 nun. long, lanceolate, straw-colored, 

 maturing but one luit ; nut 1 to 1.5 muL long, oblong-ellipsoid, pah', reticulate; 

 Ix'ak oblong-linear, longtT than the utricle, whitish; bristles irregular, whitish, 

 rigid, n^trorsely bnrbed.^ some as long a.- the nut, some twu-e as long, sometimes 



almost obsolete. 



Collected by Tonduz (ne. 11919) at k:i C<.pey, Costa Rica, altitud<^ 1,800 meters. 



Also Bogota, CoU)mbia. Lindiy 14 Hi. 



Species allied to R. schirdcfina Brilton dit^\^ring by its small and innuuKnable 



spikelets. 



^The specific name corymbosas is older and unoccupied.— Edttoh. 



