CRITICAL NOTES ON SOME SPECIES OF CERASTIUM. 818 
on the label, but did not carry out his a relying on ee 
pr publication implied in the distribution of Durie 
Exsicca Des Moulins refused to write his nae ** Desmo nlins,” 
as more tqtendly found in references, and in like manner preferr 
to write Durieu’s name incorrectly as ‘“‘Du Rieu.’ St. or 
(Htude des Fleurs) ol hard: ee that as the specific na 
was imposed on the plant in honour of Durieu, the least that th 
owner. I have therefore acted on St. Lager’s suggestion, said 
ropped “ Riwi” in favour of “ Duriwi,’” which at once identifies 
the plant = = collector. 
The se this species are not accurately described in floras 
An eekininstion of some of the seeds in a capsule from the type- 
specimens show the following on :—Smaller than in most 
5 te one-third the size of those of C. dichotomum, the testa not 
mpled or ridged but closely sioliol to the nucellus, reniform, 
viele coloured but finally a darker brown, at the margin slightly 
slightly raised Sire s in concentric series. Algerian specimens 
labelled ‘‘C. Atlanticum” in herbaria, which I have examined, 
ae seem - belsits to this species, and thus extend the range 
C. pec into North Africa. As there has been confusion in the 
mparison of specimens referred to this species, I have here de- 
sribed ‘the species from the original Magra omitting characters 
com to the subsection in which it is p 
peas tocum, pilis patentibus glanduloso- hirsutis dense eae 
arene granulis tectum, viscosum, pumilum, divaricatim perramosum, 
plerumque 7-10 centim. Folia sessilia, ovalia lanceolata vet lineari- 
lanceolata, obtusa. Cyme fastigiate dichotome ; flores numerosi, 
in dichasium 11-14 florum dispositi; pedicelli calycem sequantes 
vel eo breviores, post anthesin basi refracti, fructiferi demum iterum 
erecti; bractes: omnino herbacew. Calyx basi subumbilicatus trun- 
ca utas sepala pilis iaee rigidis hispida, apice haud barbata, dorso 
rvato-carinata, oblon o-lanceolata subacuta subpellucida, 2 ex- 
jeainos omnino Lechanieds "reliqua anguste scariosa. Petala obovato- 
cuneata breviter bidentata, sinu rotundato, interdum carnea, calyce 
formia primum ferruginea dem “eal nu salhaca arcte smectic 
dorso conspicue muricata, ore granulato-tuberculata, } eorum 
C. dichotomi tantum adequantia, seriebus granulorum concentricis 
(in fructu centrali 7 
eogr. Area. France : dept. of Lozére, rocks in the forest of 
A pence nr. pag dept. of Gard, granitic soil at Bonheur, nr. 
uw i int- 
pes of tains: in 
above Puerto de Leitariegos (the original type-specimens 
above), valley of Naviegi, on the Pico de Canellas; prov. of New 
