PLANTARUM. NOVARUM ORIENTALIUM. 431 
Hab. in scaturiginibus vulcanicis Tell-Shihán, ditionis Tracho- 
nitis (vulgo el Leja). 
A plant with softer foliage than P. Arcis- Romane, and greyish 
crisp indumentum, distinguishing it from the type and the latter- 
named species. It is found not only on the volcanic cone of 
Tell-Shihán, but in the fields around its base. 
JomnENIA Portert. Perennis, glaber glaucescens, caule tereti 
elato pluries stricte dichotomo nudo, ramis rigidis crassiusculis, 
foliis omnibus radicalibus ambitu oblongo-lanceolatis pinnatisectis 
segmentis senis cum terminali impari secus rhachidem sessilibus 
remotis ovatis grosse dentatis, umbellis aliis in dichotomiis sub- 
sessilibus depanperatis brevissime pauciradiatis aliis terminalibus 
inequaliter 6-12-radiatis contractis, involucro nullo, involucelli 
phyllis deflexis breviter lanceolatis, pedicellis tenuibus fructu 
subbrevioribus, mericarpiis ovato-oblongis, area centrali plana 
à margine fungoso albo distincta, commissura plana pruinosa. 
Hab. in collibus apricis ditionis Kapu-Cham, prope Marash ; 
floret Julio. 
Near J. fungosa, Boiss., from which it differs in the naked 
stems, the peculiar arrangement of umbels, absence of involucre 
and involucel, short pedicels, &c. It differs from J. selinoides by 
its 1- not 2-pinnatisect leaves with ovate not linear segments. 
Plant 3 feet or more in height; segments of leaves 8-9 lines 
long, pinnatisect ; mericarps 2 lines long. 
Davcus JORDANICUS. Annuus, sparsissime papillosus gla- 
brescens, caule crasso elato a basi dichotome ramoso, foliis ambitu 
oblongis petiolo non inflato suffultis 2-3-pinnatipartitis divisioni- 
bus primariis et secundariis petiolulatis laciniis oblongo-lineari- 
bus obtusis, umbellis longe pedunculatis inzequaliter 8-12-radiatis, 
involucri phyllis persistentibus linearibus viridibus apice callosis, 
involucelli phyllis ovatis acuminatis albo-scariosis margine ciliatis 
pedicellis brevioribus, petalis extus glabris late obcordatis, fructi- 
bus pedicellis subduplo brevioribus setis valde inæqualibus obsitis 
jugorum secundariorum glochidiatis fructus diametro subduplo 
longioribus, primariorum brevibus muticis, stylopodiis conico- 
elongatis stylis quadruplo longioribus superatis. uH 
Hab. in herbidis ditionis el-Ghor, Jordani vallis; floret Aprili. 
This species has the large umbels and flowers of D. pulcherri- 
mus, but is readily distinguished from it by the involucre, the 
non-inflated petiole, the much smaller fruits, resembling those of 
& Psammogeton, and the dense bristles of the primary ribs. 
Plant 2 feet high, lower stem-leaves 4 inches long, laciniw 2-3 
LINN. JOURN.—BOTANY, VOL. XXIV. 2x 
NIA s D RBS 
