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144 The Trees of Great Britain and Ireland
Scandica. Leaves with 7-9 pairs of nerves, lobes deep, with sharp
teeth.
Minima. Leaves with 5-7 pairs of nerves, smaller and narrower
than in the preceding varieties.
Certain forms of Pyrus pinnatifida closely resemble scandica, but the
lobing in these will be found always irregular and often very deep.
15. Pyrus lanata, D. Don. Himalayas. Leaves large, broad oblong,
woolly underneath, nerves 12-15 pairs, lobes regularly serrate.
C. Under surface of the leaves, which are orbictilar in outline, snowy-white
tomentose.
16. Pyrus Aria, Ehrhart, var. flabellifolia. Greece. Leaves with 3-5 pairs
of nerves.
17. Pyrus Aria, Ehrhart, var. graeca. Greece, Asia Minor. Leaves with
6-10 pairs of nerves.
V. Leaves simple, not lobed, and only occasionally obscitrely lobulate.
A. Aronia. Leaves finely serrate in margin, with glaiuls on the iipper sttrface of
the midrib. This section comprises 2 North American species and a hybrid
of garden origin, small shrubs, only referred to here to prevent their being
confused with other species of Pyrus.
18. Pyrus arbutifolia, Linnaeus fil. North America. Leaves beneath
whitish grey tomentose, with about 6 pairs of nerves directed forwards
at a very acute angle.
19. Pyrus alpina, Willdenow. A hybrid between Pyrus Aria and the
preceding species. Leaves densely grey tomentose beneath, with
9-10 pairs of nerves directed outwards at an angle of 45 .
20. Pyrus nigra, Sargent. North America. Leaves glabrous beneath or
very slightly pubescent.
B. Leaves withoitt glands on the midrib.
(21-22) Leaves glabrous beneath. These 2 species, of which the first is a shrub
and the other a small tree, are only referred to here to distinguish them from
other species.
21. Pyrus Chamsemespilus, Linnaeus. Vosges, Jura, Alps, Pyrenees.
Leaves sessile or nearly so, elliptic, with 6-8 pairs of nerves.
22. Pyrus alnifolia, Franchet and Savatier. Japan and China. Leaves
stalked, broadly ovate, with 9-12 pairs of nerves.
(23-26) Leaves white pubescent beneath.
23. Pyrus Aria, Ehrhart. Europe, Caucasus, Siberia, Central China.
Leaves oval or elliptic with very slight lobules or only doubly-
toothed, the teeth or lobules diminishing in size from above down
wards ; nerves 7-12 pairs, very prominent on the lower surface,
pubescence snowy white.
Pyrus
24. Pyrus Aria, Ehrhart, var. rupieola. British Isles (Europe?) Leaves
obovate - oblong (broadest above the middle), lobulate above, the
lobules and teeth acute, nerves 5-9 pairs, pubescence at first as white
as in the type, but ultimately becoming greyer.
25. Pyrus Aria, Ehrhart, var. Decaisneana. Origin unknown. Leaves
large, elliptic, or oblong, with margin serrated almost uniformly, nerves
12-15 Pairs -
26. Pyrus Hostii, Hort. A hybrid. Leaves like 23, but with very sharp,
irregular teeth and tomentum thin, white to greyish white.
(27) Leaves grey, densely-ivoolly ptibescent beneath.
27. Pyrus vestita, Wallich. Himalayas. Leaves very large, elliptic,
serrate, and occasionally obscurely lobulate in margin; nerves 15-18
pairs.
As many of the species mentioned above are merely shrubs or very small trees,
they do not fall within the scope of our work. For this reason, Pyrus hybrida,
cratcegifolia, Chamamespilus, alnifolia, and the three species of the section Aronia,
will not be further referred to. Pyrus Hostii, a hybrid of inconstant origin, will be
briefly mentioned in connection with Pyriis Aria.
Pyrus Auctiparia and its allies will be dealt with in a subsequent part.
The two following species are not known to us to attain timber size in cultiva
tion in the British Isles; but Mr. H. C. Baker tells us that at Chilternhouse, near
Thame, there is a specimen of P. vestita 50 feet by 6 feet 5 inches.
PYRUS LANATA, Don. 1
Known in gardens as Sorbus majestica. A tree of the eastern temperate
Himalayas ; leaves large, oval, oboval, or broadly oblong, with serrate lobes, glabrous
above when adult except for some pubescence along the midrib, greyish woolly
beneath. Flowers white in densely woolly corymbs ; petals glabrous within ; styles
2 to 5, free, densely tomentose. Fruit large, about an inch in diameter (^ to \\ in.),
narrowed to the base, red, edible. Judging from wild specimens the foliage is very
variable ; and the cultivated specimen at Kew bears leaves (figured in Plate 43),
which differ from those of wild trees in being less deeply lobed.
PYRUS VESTITA, Wall. 2
Often known in gardens as Sorbus nepalensis or Sorbzts magnified. A tree of
the temperate Himalayas from Garwhal to Sikkim. Leaves (cf. Plate 43) very
large, ovate-acute or elliptic, lobulate-serrate, densely covered with white wool when
they first appear, but later in the season becoming shining green and glabrous
above, remaining densely woolly beneath. Flowers in very woolly corymbs;
petals woolly within ; styles 3-5, tomentose only at the base. Fruit large, about
\ inch in diameter, globose.
1 Don, Prodronms, 2 37 (1825). Hook., Fl. Brit. Ind. ii. 375 (1879).
* Wallich, Catalogue, 679 (1828). Hook., Fl. Brit. Ind. ii. 375 (1879).