62 DIAGNOSES SPECIERUM NOVARUM. 
majora 17-21 cm. longa, 4-5 cm. lata, basi asymmetrica, rotun- 
data vel late cuneata, apice rotundata, margine serrulata denti- 
bus utrinque circ. 40-50, paululo revoluta (ideoque serraturae 
saepe obscurae), supra glabra plus minusve nitida, infra glabra 
plus minusve glauca, costa impressa subtus multo elevata, 
nervis utrinque circ. 30, reticulo supra paulo obscuro infra 
conspicuo ; foliola in spec. juvenilibus plana marginibus haud 
revolutis serraturis conspicuis. Inflorescentia circ. I2 cm. 
longa, circ. 15 cm. lata, convexa, plus minusve densa, sub 
fructu. sparsim longiuscule albo-villosa. Flores non visi. 
Sepala circ. 1.5 mm. longa triangularia rubrida. Carpidia 
plerumque tria. Fructus vix maturus ovoideo-globosus apice 
truncatulus circ. 5 mm. longus circ. 4 mm. latus. 
‘“‘ China :—Tree of 25-40 ft. In fruit. In thickets on the 
western flank of the Shweli-Salween divide, Yunnan. Lat. 
25° 20’ N. Alt. gooo ft. Aug. 1912.” G. Forrest. No. go4o. 
This is a very remarkable species. At maturity it is con- 
spicuous by the large size of the leaflets which often exceed 
8 inches in length, by the small number of the pairs of leaflets 
and by their stout coriaceous texture. In the young plants 
observed in cultivation in the Royal Botanic Garden the leaves 
are generally trifoliate, with a shining upper surface and distinct 
serration ; in plants of a foot high trifoliate leaves are found 
along with leaves showing 2-4 pairs of leaflets. Among the 
Chinese species of Pyrus of the section Sorbus the species most 
akin appears to be S. Sargentiana, Koehne; the leaflets, how- 
ever, in that species are decidedly small, have a long acuminate 
apex, a much thinner texture, and a more or less deciduous 
covering of wool especially on the under surface. Another 
close ally is P. insignis, Hook. f. from the East Himalaya, which 
has smaller more numerous leaflets and is much less glabrous. 
The specific name is in honour of Mr. Robert Lewis Harrow, 
Head Gardener of the Royal Botanic Garden since 1902. 
Rhamnella Forrestii, W. W. 5m. Sp. nov. 
Species valde affinis Rhamnellae Martinii, Schneider a qua 
foliis tenuioribus, nervis paucioribus magis distantibus angulo 
majore a costa ad marginem decurrentibus inter alia signa 
divergit; a R. Maztrei, Schneider inflorescentiis 1~—2-floris 
differt; a R. Julianae, Schneider foliis glaberrimis recognos- 
Frutex 2-3 m. altus; ramuli graciles glabri cinerei. Folia 
petiolo circ. 5 mm. longo suffulta; stipulae eas Rhamunellae 
Martinit simulantes ; lamina in sicco tenuiter membranacea, 
4-7.5 cm. longa, 2-3 cm. lata, oblongo-lanceolata, apice grada- 
tim acuminata, basi rotundata vel late cuneata, margine serru- 
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