CYPERACE/E IN THE WELWITSCH HERBARIUM. 159 
* One of the most troublesome weeds in the cotton plantations; in the fields of 
Mossamedes, alas, too common, July 1859, no. 6972." 
It is impossible to separate specifically any of these varieties from S. maritimus, L., 
though the two latter ones appear very dissimilar at first sight. A great deal of the 
variation is doubtless caused by their unusual habitats. The species is probably the 
most widely distributed of Cyperaceous plants, ranging from Iceland to New Zealand. 
S. NOBILIS, n. sp. Planta alta, 6-12-pedalis; culmis erectis validis triquetris foliatis 
angulis scabris; foliis late linearibus acuminatis culmum superantibus glauces- 
centibus; vaginis longis truncatis striatis ore scariosis; panicula magna decomposita 
patula; radiis circiter 10, valde inzequalibus scabridis triquetris, ocreis bracteolas 
subzequantibus pallidis membranaceis breviter laminiferis integris lanuginosis ; 
involueralibus pluribus elongatis angustis; spiculis ovatis lanceolatis semiuncialibus 
1-3 in apicibus radiorum; squamis lanceolatis mucronatis, marginibus laciniatis, 
fulvo-brunneis, mucrone longo recurvo acuto scabro, carina canaliculata scabrida ; 
stylo longo exserto trifido; setis 6 retrorsum scabris, brunneis; staminibus tribus, 
longe apiculatis, apiculo conico hispido rufo; caryopsi oblonga fusiformi obscure 
trigona olivacea nitida, quam squama dimidio breviore. 
Mossamedes, ad ripas arenosas fluminis Maiombo, frequens et quasi sylvulas formans 
densissimas, Oct. 1859, no. 6975. 
Also S.W. Africa, lat. 23^, Messrs. Chapman and Baines, in Herb. Kew., and Mada- 
gascar, Forbes, Herb. Brit. Mus. 
A very beautiful plant, most nearly related to S. maritimus, L. 
S. REHMANNI, n.sp. Humilis, glabra; culmis bipollicaribus striatis acute triquetris ; foliis 
linearibus acutis, quam culmi brevioribus; vaginis purpureis fissis costatis ; spiculis 
pluribus in capitulo dense congestis ; foliis involucralibus 4—5-linearibus aeuminatis 
longis reflexis, basi purpurea vix dilatatis; squamis ovatis purpureis 5-costatis, mu- 
стопе longissimo, curvo, viridi; caryopsi minuta oblongo-oblanceolata, subeylindrica, 
brevissime apieulata, quam squama duplo breviore, purpurea, minute punctata. 
Huilla, in arvis humidis argillaceo-arenosis post cerealium messem frequens, circa 
Lopollo, ad fin. Maii 1860, по. 6771. Capitula viridia. 
This species is nearly related to the Russian 8. hamulosus, Stev., but differs notably 
in the much longer mucrones of the glumes. The involucral bracts are rather long, 
attaining the length of an inch, and the capitula are half an inch in diameter. The 
plant has also been obtained by Dr. Rehmann, at Griffin's Hill, East Court, in Natal 
(Herb. Brit. Mus.), whose name I have great pleasure in associating with it. 
FUIRENA CHLOROCARPA, n. sp.; rhizomate breviter repente, radieibus crassiusculis ; 
culmis paucis pedalibus et ultra, foliatis; foliis 5-8 glabris linearibus acuminatis 
carinatis; vaginis acute triquetris striatis, inferioribus plerumque glabris ampliatis, 
ore jpubescentia ‘alba vestitis, vagina suprema omnino pubescente, ligulis truncatis. 
ferrugineis; capitulis 2-5; spiculis lanceolatis congestis, subpentastichis ; squamis 
