Ord. VII. Tribe III. ALG^ CONFERVOIDEiE. 
4. Branches pinnulnte, Pinnulce alternate. 
15213 Filam. branch. Branches virg. surround, by short corymbose fastig. branchl. Artie. 3 times as long as broad 
15214 Filam. branched, Branchlets alternate rigid spreading subulate, Artie. 3 times as long as broad 
15215 Filam. branched, Branchlets scattered decompound-pinnate, Artie. 3 times as long as broad 
15216 Filam. branched, Branchlets scattered virgate, Artie. 8 times as long as broad 
15217 Filam. virgate with many simple or multifid pencilled ramuli, Artie. 3 times as long as broad 
15218 Primary filaments downy, Branches straight decompound pinnate, Artie. 3 times as long as broad 
15219 Filam. much branch. Artie. 4 times as long as broad by degrees becoming thickened. Caps, stalked ellipt. 
5. Filaments pinnated, PinncB opposite. 
15220 Filam. pinnated, Pinnje opposite nearly simple, Artie, many times longer than broad 
15221 Filam. with irregular branches, having at each joint short slender opposite spreading recurved branchlets 
1. Branches fascicled. 
15222 Filam. branched, Branchlets subternate distant short multifid, Artie, much longer than broad [broad 
15223 Filam. branch, cover, all over with somew. whorl, imbricat. short multif. branchl. Artie, much longer than 
2. Dicliotomous, chained. 
15224 Filam. dichotom. straight. Branches erect long. Articulations cylindrical about 5 times as long as broad 
15225 Filam, dichotom. Fibres multifid very fine, Articulations thickened upwards about 5 times as long as broad 
15226 Filaments dichotomous slippery, Articulations thickened 2-4 times as long as broad 
15227 The only species 
a. Purple or scarlet, flat, somewhat pinnated. 
15228 Filaments bipinnate veiny rigid, Pinnae and pinnules alternate, Articulations rather shorter than long 
15229 Dark-red, Branches divaricate rigid. Articulations 3-tubed as long as broad. Stem rough with tubercles 
15230 Filam. very much branch. Primary not jointed. Branches decomp.-pmn. Pinnules heterogen. multif. fascic. 
b. Creeping, Branches divaricating, often one-sided. 
15231 Filaments entangled with scattered branches, Branches divaricating. Articulations twice as long as broad 
c. Purple, whole-colored, adhering to paper. 
15232 Filaments nearly equal branched virgate. Branches erect. Lower articulations 5 times as long as broad 
d. Pencilled, black above, generally rose-colored above, adhering to paper. 
15233 Filam. much branched diffuse. Branches virgate spread. Lower artic. obsol. Artie, much longer than broad 
15234 Filaments much branched at end diffuse, Lower articulations very short when dry nodulose: vipper about 
as long as broad with 3 veins 
(3 Filaments short somewhat pectinated, Branches nearly simple 
15235 Filaments much branched diffuse, Branchlets spreading short. Articulations half as long again as broad 
15236 Filam. dichotom. pencilled much branched, Articulations shorter than long netted veiny : lower obsolete 
15237 Filam. much branched diffuse, Lower artic. 5-veined 4 times as long as broad : upp. 3-veined twice as long 
15238 First filament not jointed spirally veiny. Articulations as long as broad. Capsules axillary 
15239 Filaments branched veiny, Branches long, Artic. of stem long, of the branches thrice as short 
e. Black or blackish-brown when dry, rigid, scarcely adhering to paper. 
15340 Filam. dichotomous nearly equal fastigiate, Artic. shorter than broad with a black point in the middle 
15241 Filaments dichotomous irregularly branched at end. Branches and branchlets very straight : upper artic. 
3 times as long as broad 
15242 Filam. much branched long diff". Branchl. short spread .squarr. recurved. Lower artic. long : upper short 
/. Branchlets lateral, short, fascicled. 
15243 Filaments decompound pinnated, Branchlets very short and fine, Articulations 3 times as long as broad 
15244 Filaments branched virgate. Branch, alternately pinnated, Branchlets siiort multifid, Theca sessile ovate 
15245 Filam. much branched covered with heterogeneous hair-like simple branchlets, Artic. very short obsolete 
15246 Frond somewhat cartilaginous compressed transversely rugose bipinnated. Pinnules in fruit incurved 
15247 Filam. nearly separate. Branches erect subulate, Artic. rather longer than broad, Pods linear subulate 
15248 Filam. much branched very fine. Branches and branchlets opposite spreading attenuated acute, Artic, 
half as long again as broad 
15249 Filam. much branch. Branches scatt. spread, taper, ac. : at tips hyal. Artic. as long as broad finally tumid 
15250 Frond rope-like somew. spongy divid. into branches, Filam. densely entang. Artic. 4 times as long as broad 
and Miscellaneous Particulars. 
Hutchinsias, not being aware that the name of Miss Hutchins had previouslj been applied to a genus of Cruci- 
feras, by Mr. Brown. The species of this genus are, perhaps, the most beautiful of all the tribes of Confervse. 
2300. Rytiphlcea. So called, it is presumed, from ^vn;, a wrinkle, and (pXto, to be filled with any thing. The 
filaments are essentially characterized by their numerous transverse rugosities. 
2301. Ectocarpus. From (.>iTOi, outside, and n-ot^-rt;, fruit, because the thecze are not mcluded in the sub- 
etance of the frond, as in the next genus, but placed on the outside. Marine plants. 
