MARINE ALG OF BEAUFORT, N. C. 537 
uu. Texture rather cartilaginous; frond coarse, 1 to 1.5 mm. in diameter, 
sparingly branched, small branches few, usually coarse 
Aeneas DEL ISTE Lee). Meine ale Boley, 9 Gracilaria muliipartita (p. 484). 
uuu. Texture cartilaginous, wiry; frond coarse, densely branched, branches 
interwoven, beset with many short, coarse, blunt branchlets 
Geos chic tie pee eee ae ere reas aE)! tek 16 FLAUNT. (Ds 407)s 
bbbb. Frond aattenede aya inpehy inate fa eM RR OTS Rr Seton SEs Stray witha Dr. ee eeT Pte. Mae v. 
a: Brond': to;agmmimy wid esntwidest part..winos 515. 2 RES RR OD. OR. 2. w. 
w. Frond regularly dichotomous . Aue selenite 
x. Frond 4 to 12 mm. wide in widest re 2 id 8c em. Tong, tmembrantidess/ fleshy, 
rather thick, edges smooth; red or pink.. Sacks eseseGehe . .RHODYMENIA (p. 487). 
xx. Frond 12 to 25 mm. wide in widest part, 3 re tocm. long, Hlectey, rather coarse, 
edges ruffled; purple. . ae tees eeeees++.CRYPTONEMIA (p. 521). 
xxx. Frond 10 to 25 mm. widei in a widest part, 6 to 20cm. ong, thin aceni ie caeetsas: 
veined, edges wavy, slightly proliferous; bright pink... . .NITOPHYLLUM (p. 494). 
ww. Frond pinnately or irregularly branched.. Jafeoiaeis Rese sess 
y. Frond not more than 1 mm. wide, ety rather densely pinnately of or ee 
larly branched; dark purple. . Hepes ats . .Grateloupta filicina (p. 521). 
yy. Frond 6 to 18 mm. wide in widest, part, fleshy, 3 main axis legeaiedanely larger 
than branches, densely decompound distichously branched, branches 
sometimes dichotomous, all branches flat, numerous branchlets frequently 
arising from the flat surfaces; purplish green...............Grateloupia gibbesii (p. 521). 
yyy. Frond g to 15 mm. wide in widest part, gelatinous, main axis conspicuously 
larger than branches, sparingly distichously branched, ultimate branches 
rounded; pink. . i tne Me, ee aa ae (p. 518). 
vv. Frond 40 to 130 mm. wridlesieruypitiest part, SPCR MID apne ion nao Bon OSE AboROCHEr amo nene rc 2 
z. Frond very thin membranaceous, delicate. a AAS 8 COO SCO TES UIDH ES HULA GOES ERIE cers a’. 
a’. Frond pink, simple or sparingly branched, bearing a conspicuous midrib and 
sometimes fine sladiink veins; fruit appearing as conspicuous dots on 
sttface...: ¥ac5%: Neen . .GRINNELLIA (p. 495). 
aa’. Frond purple; simple. or Jnregularly davaded, into iabes: structure uniform; 
fruit not visible to naked eye.. slehi(e en's s eieties)eia/s)e/sis e[elsinielvicia ve DL ORPHYRA’(p, 40), 
zz. Frond firm, membranaceous or ahve Be Sh ae CTE NE cy ORC AGRIC MCGEE Sos OSCR IE TERE Pee i oat ce 
b’. Frond dichotomously branched. . tee se ects eeceeeseteeeeess +eAGARDHINULA (p. 488). 
bb’. Frond simple or lobate, not Aielatamous ate Sooo ae 
c’. Frond fleshy-cartilaginous, coarse, aeaplen or eS awaited fata Igbes. 
not reaching to the base, sometimes proliferous from the margins, stem 
inconspicuous; cystocarpic fruit borne in conspicuous, short protuberances 
arising from edges and surface; usually dark red, sometimes yellowish 
Hag Nase ott Oat ao GE ARR ETA AOU ETE APIA th oS REM oe MERISTOTHECA (p. 479). 
cc’. Frond firm membranaceous, thin, usually divided into several more or less 
regular ovate or elliptical lobes arising from the base on distinct stalks; 
fruit in inconspicuous dots on surface; purplish pink. ...Halymenia floridana (p. 519). 
ccc’. Frond gelatinous-fleshy, light pink, sometimes with yellowish tinge............d/. 
d’, Frond simple or divided into several lobes borne on distinct stalks; frond 
or lobes ovate.......... .s.s.+....Halymenia gelinaria (p. 518), 
dd’. Frond simple or irregularly Rigaded ae hes: frond or lobes lanceolate 
PTO Piao ata te coe ep ere . .Chrysymenia agardhti (p. 490). 
aa. Frond incrusted with lime. TRS Bits any TACIT BRST CBN CERT SPIRAL, Cathe neg Sen a MR OR a Ce 
e’. Frond erect, filiform, jointed.. aAceh ipo one ockve Mun Cpu pas CMO Sey BOAO LY [26 
jf’. Conceptacles immersed, scattered over the seemients. wee cee seesceee cess AMPHIROA (p. 526). 
ff’. Conceptacles immersed in the apices of terminal geumetite, opening by terminal 
pores, the fertile segments sometimes bearing hornlike lateral branches. CORALLINA (p. 527). 
