ON A NEW IRISH HEPATIC. 309 
foliage and branches to those of Pyrus acerba, which is common in 
our hedges, makes it likely to be overlooked, capone as from one 
cause or another flowers are rarely seen on its boug 
The differences shown by my tree from its par rent, a appearing as 
they ica € in one generation only, perenne, I think, the probability 
of this wild pear of the deh betnod of Plymouth being here a 
Epcousrated product of some cultivated variety of the pear rather 
ruly indigenous one; for, considering the treatment my 
=e has had, reversion to an earlier, though ‘artificial, state must 
I think be assumed rather than variation under altered conditions. 
to be in bl gen es with our apple rathed than our 
pear trees; moreover, they were borne away from houses and 
gardens. 
ON A NEW IRISH HEPATIC. 
By Ricuarp Spruce. 
ameo, ex parte sub 
pinnato, ex parte dichotomo. Folia ont os subdissita, a basi 
decurrente complicato-sac eee, carin um 45° subrecte 
ascendente vel ae abrupte late abana SBligts late oblonga 
rotundata, plan basi. repanda, longe incurrentia, 
suffulti. Bracter sepius unijuge, erecte, sese arcte imbricantes, 
ad medium bilobe, lobo majore late obovato, lobulo vix duplo 
breviore subrotundo. Periant thia alte emersa, tenuia, subincurva, 
tubeformia vel serbiegeomors bee fere teretia, solum apice per- 
paulo compressa, ore truncato obsolete 4-lobo. Andrcecia in ramis 
lanaciilalii bractese 50 cae: nisi pro lobulo a foliis vix 
diverse, parum turgide, diandre. —Folia -8 x 6, lobulus -25 x °8, 
cellule +; bractee lobus *6 x *4, lobulus °87 x *B5; perianthia 
21x 8 (ore) x 15 mm. (infra medium 
 Journan or Botany.—Vot. 25. fies; 1887.] P 
