152 CHARACTERS OF SOME GNAPHALIOID COMPOSITÆ. 
branches and branchlets filiform ; and the spikes, as described by Ben- 
tham, are only three or four lines long. The lowermost capitula are 
principally one-flowered. 
$ 2. Involucri squamæ tantum 2, opposite, naviculares, marginibus 
superne parce setigero-denticulatæ v. fimbriatæ, cum palea 
fulcrante inferne glabræ. Radix multicaulis. 
2. C. Drummondii : spicis cylindricis breviusculis; corolla tridentata. 
—Crossolepis ? pusilla, Hook. Ic. Pl. t. 413.  Chrysocoryne, Endl. 
l. c. ex char. 
Swan River, Drummond.—Stems 1 to 2 inches high. Spikes half 
an inch long, straw-colour or ferruginous. 
+ 3. C. myosuroides, n. sp.: spicis cylindricis lineari-elongatis; corolla 
5-dentata exserta. 
Swan River, Drummond, 1845.—Stems and foliage as in the fore- 
going; the orange-fuscous spikes an inch or more in length, narrowed 
at the base, much resembling the fructification of Myosurus. The two 
squamæ of the partial involucre are much narrower than in C. Drum- 
mondii, and less setigerous-fimbriate above. 
CEPHALOSORUS, noy. gen. 
Capitula uniflora, in glomerulum sphæroideum dense aggregata. Invo- 
lucrum generale 2—3-seriale ; squamis foliaceis vel subherbaceis inap- 
pendiculatis. Receptaculum generale aut latum convexum aut cylin- 
draceum, paleis linearibus scariosis inter capitula et cum iis plus 
minus deciduis onustum. Znvolucrum partiale e squamis scariosis 
concavis exappendiculatis 4-6, exterioribus oblongis, interioribus 
latioribus florem invicem involventibus. Flos hermaphroditus. Co- 
rolla tubulosa infundibuliformis, limbo 5-fido. Anthere basi sub- 
caudate. Styli rami apice capitellati, breviter penicillati. Achænium 
obovatum, aut glabrum pellicula diaphana humectate tumefacta gela- 
tinosa, aut hirsutum, pappo calyciformi conspicuo tenuiter scarioso 
deciduo coronatum.—Herbæ annuæ ; caule virgato simplici vel parce 
ramoso, apice subnudo glomerulum solitarium gerente ; foliis alternis. 
Flores flavidi. (Species duæ quoad involucrum et receptaculum glo- 
meruli plane diversæ, nec tamen meo sensu divellendæ.) 
- 1. C. phyllocephalus, n. sp. : foliis spathulatis cauleque tomento floccoso 
- deciduo lanatis ; glomerulo depressi-globoso involucro foliaceo (squa- 
mis ovatis) cincto; receptaculo generale depresso; achænio glabro; 
