ET INSULARUM MARIS PACIFICI. 299 
most remarkable. This first joint bears already fructification ; whereby 
it appears as if there was a circle of seeds and antheridia in the 
ground of the whorl. ^ Another difference, important but difficult 
to observe, consists in the construction of the covering of the leaves. 
In Ch. fragilis the number of series of covering cells is double that of 
the foliola ; in Ch. brachypus triple, which is accompanied in the latter 
species by a finer striation of the leaves. In this character Ch. brachypus 
agrees with Ch. polyphylla, which in many forms indeed is deceivingly 
near it. But in Ch. polyphylla the first joint of the leaf is not only 
uncoloured, but also uncovered, and therefore not striated. 
Concerning the name, I have not adopted that of setosa, not only 
because it is unsuited, but also because even the authors of it did not 
know exactly their own species, and confounded them with Oh. poly- 
phylla, var. Ceylonica, as can be seen by comparing Willdenow’s herba- 
rium. The paper of Klein, containing at the same time a diagnosis, 
shows that Klein called his new species Oh. setigera (not setosa), a name 
d lore 
[11 
Ch. brachypus are somewhat shorter than the seed, or, at the most, of 
the same length, while they generally are longer in Ch. Ceylonica. This 
indicates a confusion of both species, which is confirmed by com- 
paring the specimens communicated by Klein to Willdenow. The 
specimens of both species are now and then infested by young Con- 
Jerve, which Willdenow regarded as hairs belonging to the plant. 
Therefore he says, in his diagnosis, “ ramulis apices subpilosis.” These 
hairs are also represented by him in his figure of Ch. brachypus. 
The length of the whole seed of Ch. drachypus is *23%° m.; that of 
the nut 53:65 
** gymnopodes E 
ll. Ch. polyphylla, monoica, plus minusve incrustata ; caule seriebus 
tubulorum numero foliorum triplis corticato, aculeis angustis acutis: 
armato ; foliis verticillorum 8—15, articulis 8-13, infimo brevissimo 
ecorticato hyalino, sequentibus corticatis, ultimo brevissimo ecorticato 
mucronem terminalem formante, rarius pluribus superioribus ecorti- 
catis; foliolis in ommibus geniculis verticillatis, anterioribus longi- 
oribus plerumque semina superantibus; stipulis coronam duplicem 
formantibus, seriei superioris longioribus foliorum articulum infimum 
