RHYNCHOSPORA. 



CYPERACEAE. 693 



ellipticum coinpressum pallidum vel leviter ferrugineum . utrinquc cum disco vitreo; 

 tuberrulum iriangularc compressum confluens, basi latum, quartani achaenii partem 

 aequans; setae 0; stamina cluo; stylus longus bipartitus. — lih. Grayana Chapm. mss. 

 — lih. confcvta Chapm. mss. — Habitat in Florida. 



RH. DIVERGENS Cbapm. mss. ex Curtis I. c. — Culmi filiformes glabri foliosi (fi-12"'); folia 

 distantia seiacea, margine apicem versus serrulata; paniculae axillares et terminales 

 corymbosae parvae laxae et, clivergentes, laterales pedunculatae ; spieulae pedicellatae 

 parvae ovuideac acutae, pallide castaneae, lloribus omnibus ferlilrbus ; acliuenium obo- 

 vatum biconvexum, minulissime lougitudinaliter striolaluin vel cancellatum pallidum 

 vel obscurum; tuberculum parvum album, basi constricium; stylus longus profunde 

 biparlitus; stamen unicum; setae 0. — Habitat in America boreali. 

 RH. KNIESKERNII Jolin Carey, Flora (B. Z.) XXXIII. 80. & inGray, Manual of the bot. 

 of the North. United Staates 5^13. — Culmo trigono gracili; spicis numerosis in glorne- 

 rulos 4—6 distantes aggregatis; nuce laevi obovaia substipitaia, setas 6 rclrorsum his- 

 pidas aequante, tubereulo triangulari subduplo longiore. — Habitat in pinotis (Nov.- 

 Caesar.) in America boreali. 



RH. TORREYANA A. Gray, Manual of the bot. of ibe North. Unit. Staatcs 532. — Culmo 

 teretiusculo gracili ; foliis setaceis; cymis paniculatis laxiusculis ; spicis plerumque 

 pedicellatis; achaenio oblongo-obovato paralleliter rugoso, setis longiore, quam tuber- 

 culum compresso - conicum latum triplo longiore. — Culmi 2 — 3 - pedales. — Habitat 

 in America boreali (New Jersey) 



RH. GRACILENTA A. Gray I. c 533. — Foliis auguste linearibus; spicis ovoideis in 

 2—4 glomerulos parvos aggregatis, lateralibus longe pedunculatis: acbaenio ovoideo 

 quam setae breviore, tuberculum complanaium subulatum subaequante — Culini gracil- 

 limi 1—2- pedales. — Habital in America boreali (New Jersey), 



XXVIM CAXYPTROSTMilS N. ab E. 



(N. ab E. Linnaea IX. 295. — Rhynchosporae spcc. Knth. Enumer. I. ?*<?.-) 



C. PANICULATA Liebm. Mexicos llalvgraes pag. 64. f — Culmo tripedali triquetro 

 glabro foliato; foliis planis, infcrioribus 5—6'" latis, supra margineque scabris, subtus 

 pallidioribus glabris , vaginis glahris laxis , ore nudis berbaceis; paniculis axillaribus 

 terminalibusque, inlernodiis multo brevioribus, dislantibus pedunculatis duplicato- tripli- 

 catove-ramosis, ramis triquetris scabris , omnibus bractea setacea scabra suffultis di- 

 stichis alternis, sursum decrescentibus, inferioribus divaricatis, superioribus patulis 

 secundariis tertiariisque brevibus; ochreis brevibus obliquis ; spiculis solitariis 4"' lon- 

 gis lanceolatis acutis, braclea selacea sulfultis billoris 6-squamatis; squarnis 3 inferio- 

 ribus minoribus incrcscente lamen magnitudiue, quarta majore fertili. quinta mascula, 

 sexta angustiore vacua , ovato - lanceolatis mucronatis carinatis uninerviis fuscis mem- 

 branaceis; staminiluis 3, Blamenlis exsertis: caryopsi orbiculari lenljculari biconvexa 

 nilida castaneo - fusca obsolele transversim striaiula, rosiro compresso basi circum- 

 scissa caryopsi angustiori, eamque parum supt-rnnte cinerea; stylo longe exserto fle- 

 xuoso, apice bifldo; setis 6 anlrorsum bispido-scabris caryopsin aequantibus. — Habi- 

 in Mexico (in distr. Puebla). 



XXXIlb. ERIO^fORA Hoctist. mss. 

 (Hochst. mss. in A. Richard , Tent. flor. Abyss. II. 508.) 



„Ce genre est tres singulier. Ses epis se composent d'un assez grand 

 nombre d'epileltes sessiles et geraines, a iaisselle d'une ecaille. L'une 



