124 A NEW SPECIES OF RANUNCULUS. 
cordatis acuminatis grosse crenatis utrinque pilis rigidis simplicibus 
vel stellatis conspersis, calyce spathaceo scarioso pubescente apice 
bifido, involucro 4-partito persistente cum fructu increscente, laciniis 
late ovatis extus hispidulis intus pubescentibus, floribus in ramorum 
brevium axillarium apice fasciculatis vel terminalibus. 
Fructus lineari-oblongus, rostratus, pentagonus, pilis albis longis patulis 
rigidis vestitus. Pedicelli 1-1 poll. longi, basi bracteis 2 subu- 
latis suffulti. Folia cum petiolo 3-pollicari 6-7 poll. longa, 3} poll. 
lata. Flores lutei, fando purpurei.— Crescit in regno Warreensi ; 
fl. et fruct. Januario. 
The four-divided involuere, which is persistent, and increases in size 
with the fruit, sufficiently distinguishes this species, although it is not 
the only species which has a four-leaved involucre ; the Hibiscus tetra- 
phyllus of Roxburgh, which also belongs to this genus, has a similar 
involucre, but very different leaves. 
(To be continued.) 
Figure and Description of a new species of RANUNCULUS, from the 
Rocky Mountains ; by Str W. J. Hooker, D.C.L., F.R.S.A. 
(Tas. IV.) 
RANUNCULUS (§ Ranunculastrum) DIGITATUS. 
Humilis, glaberrimus, radice grumosa, foliis paucis petiolatis digitato- 
subpedatifidis laeiniis oblongo-spathulatis, floribus 2-3 terminalibus, 
sepalis 5 patenti-reflexis, petalis 7-11 oblongo-cuneatis, capitulis 
subglobosis, carpellis ovatis glabris stylo subulato paululum recur- 
vato terminatis. 
Has. Rocky Mountains, near Fort Hall. Mr. Burke. 
Planta digitalis, glaberrima. Radix e tuberibus paucis (3-5) clavatis 
fasciculatis, una cum fibris 2-3 crassiusculis e summitate tuberum. 
Caulis brevis, simplex, parce foliosus. Folia digitata, laciniis 3-4, 
oblongo-spathulatis, exterioribus nune bifidis bipartitis vix radicali- 
bus sublonge petiolatis, caulinis (sub-2) approximatis subsessilibus. 
Flores 2—3, terminales, pedunculati, magnitudine variant. Calycis 
sepala 5, membranacea potius quam herbacea, ovata, patenti-reflexa, 
