Tas. 8530. 
DERRIS oLiGosPERMA. 
New Guinea to New South Wales. 
Lzeaumrinosak. Tribe DALBERGIEAE. : 
Dernris, Lour.; Benth. et Hook. f. Gen. Plant. vol. i. p. 549. 
Derris (§ Brachypterum) oligosperma, K. Schum. et Lauterb. Fl. Deutsch, 
peed p. 361; ab affini D. scandente, Benth., alis basi truncatis glabris: 
recedit. : 
Liana lignosa, ultra 15-metralis, basi vix 4 em. diametro (ex Sprague); ramuli 
teretes, juventute ferrugineo-pubescentes. Folia 14-17°5 em. longa, petiolo 
3°5-4 em. longo ramulis rhachidibus petiolulisque pubescente suffulta ; 
stipulae parvae, densiuscule ferrugineo-pubescentes ; rhachis superne 
praecipue canaliculata; foliola 5-6-juga, elliptico-ovata ad oblongo-obovata 
vel terminalia elliptico-obovata, apice param retusa, mucronulata, basi 
inferiora oblique subtruncata, superiora cuneata vel late cuneata, 3-6°3 cm. 
longa, 1-9-4 em. lata, chartacea, supra costa nervisque exceptis glabre- 
scentia, minute reticulata, infra pallidiora, costa nervisque densius ceterum 
pubescentia, nervis lateralibus utrinsecus 5-7 supra conspicuis 
subtus prominulis; petioluli 2-3 mm. longi. Racemi axillares, circiter 
12 cm. longi, pedunculo vix 2°5 em. longo suffulti, nodis conspicuis flores 
4-6 vel usque ad 9 gerentibus; pedicelli ad 7 mm. longi, apicem versus 
bracteolis duabus vix 1°5 mm. longis instructi. Calyx 3-5 mm. longus, 
truncatus, obsolete 3-dentatus, margine involuto, extra ferrugineo- 
pubescens, intus glaber. Verillum subrotundatum, 8°5 mm. longum, 
margine involuto, ungui 2 mm. longo suffultum; alae oblongae, basi 
truncatae, 7°5 mm. longae, 2°5 mm. latae, ungui 2°5 mm. longo, glabrae, 
carinae medio leviter adhaerentes; carina 7 mm. longa, 3°5 mm. lata, 
obtusa, superne pilis » paucis previusculis ferrugineis instructa, uogul 
2°75 mm. longo. Discus 8-lobatus. Ovarium compressum, q. min. altum, 
adpresse pubescens, stylo glabro, stigmate parvo capitato. Fructus ad 
4°5 em. longus et 1 cm. latus, latere altero anguste alatus, adpresse 
ferrugineo-pubescens.—D. scundens, auct. plurim. austral. vix Dalbergia 
scandens, Roxb. D. involuta, Sprague in Gard. Chron. 1905, vol. xxxvill. 
p. 3. Wistaria involuta, Sprague in Gard. Chron. 1904, vol. xxxv1. p. 141.— 
W. G. CRAIB. 
The subject of our illustration is a powerful woody ever- 
ereen climber which has been in cultivation in the 
‘Temperate House at Kew for over a quarter of a century, 
and has now attained large dimensions. The seed from 
which it was raised came from the Richmond River in New 
South Wales, and when for the first time it flowered in 
1904 it was, from its flowers alone, described as a new 
Wistaria. When fruits became available it was found to 
be a’ member of the Brachypterum: section of Derrts, and to 
Drcemper, 1913. 
