1482 The Trees of Great Britain and Ireland 



flowers. These glandular areas, which are large and conspicuous near the base of 

 the leaf, bear no pubescence.^ 



The seedlings^ of Catalpa have stalked deeply bifid oblate cotyledons raised 

 above ground, and followed on the stem by opposite decussate or ternately verticillate 

 ovate leaves. 



Catalpas may be propagated ^ by both stem and root cuttings. 



Eight species of Catalpa are known, of which three are natives of the West 

 Indies and not hardy. The West Indian species constitute a distinct section, charac- 

 terised by lanceolate or elliptic leaves. The remaining five species, with ovate 

 leaves, inhabit the United States and China; and have all been introduced into 

 cultivation in Europe. They may be arranged as follows : — 



I. Leaves glabrous. 



1. Catalpa Bungei, Mey^r. China. Seep. 1489. 



Leaves, with a disagreeable peculiar odour, entire with a long slender 

 acuminate apex, or with one or two long-pointed lateral lobes, or coarsely 

 serrate in margin. 



I I. Leaves pubescent with simple hairs. 



* Branchlets glabrous. 



2. Catalpa bignonioides, Walter. United States. See p. 1485. 



Leaves, with a disagreeable peculiar odour, usually entire with a short apex, 

 glabrous above, pubescent beneath, the pubescence not covering the whole 

 surface of the midrib. 



3. Catalpa speciosa, Warder. United States. See p. 1483. 



Leaves inodorous, usually entire with a long acuminate apex, glabrous above, 

 pubescent beneath, the pubescence covering the midrib entirely. 

 ** Branchlets with stiff glandular hairs. 



4. Catalpa Kaempferi, Siebold and Zuccarini. Wild in Central China, long 



cultivated in Japan. See p. 1487. 

 Leaves inodorous, usually three - lobed ; pubescent on the upper surface 

 throughout, and on the lower surface on the midrib and nerves. 



HI. Leaves tomentose with branched hairs. 



5. Catalpa Fargesi, Bureau. Central China. See p. 1490. 



Leaves entire or with one or two acute lateral lobes ; tomentose on the lower 

 surface throughout, and on the upper surface mainly on the nerves. 



(A. H.) 



1 Cf. Ryder in Proc. Philad. Acad. 1879, p. 161, and Amer. Nat. xiii. 648 (1879). The glandular areas are greenish in 

 the two species from the United States, and purplish in the three Chinese species. They are almost entirely confined to the 

 base of the leaf in C. FargeH and C. Bungei; but are also present in the upper axils of the leaf in C. Kaempferi, C. speciosa, 

 and C. bipionioides. 



^ Described by Lubbock, Seedlings, ii. 335, 339, fig. 571 (1892). 



' Cf. J. Clarke in Card. Chron. xlvii. 100 (1910). 



