20 Journal of the Asiatic Society of Bengal [January, 1914. 



p. 399: Hook, f., Flor. Brit. Ind., vi. (1892), p. 296. D. papu- 

 ana, Warb., in Engl. Bot. Jahrb., xiii. (1891), p. 273. D. 

 sativa, Linn., Sp. Plant., (1753) p. 1033, in small part: Lam., 

 111., (1793), t. 818. D. spinosa, Roxb. ex Wall., Cat. Lith., 

 (1832), Nos. 5103A, 5103D, 5103E : C. H. Wright, in Journ. 

 Linn. Soc. Bot., xxxvi. (1903), p. 91 : Safford, in Contrib. U. S. 

 Nat. Herb., ix. (1905), p. 68. D. tihaefolia, Kunth, Enum., v. 

 (1850), p. 401. D. tredecimnervis, Pierre, in Herb, propr. D. 

 Tugui, Blanco, Flor. Filip. (1839), p. 800. Oncus esculentus, 

 Lour., Flor. Cochin-ch., (1790), p. 194. 



Variat : — 



Var. tilijefolia. Folia magna, 13-nervia, pubescentia. Flores 



maris copiose producti. Tubera clavata, radiculosa, infra 



spinas horridas producta. 

 Var. spinosa. Folia paululo minora, plus minusve pubescentia 



Flores raro producti. Tubera infra spinas producta. 

 Var. FASCicrjLATA. Folia minora, subglabra. Flores omnino 



desunt. Tubera ellipsoidea, congregata, espinosa. 



Varietas tili^efolia est planta inculta insularum philippinensium et 

 regionis istius. Flores maris copiose producti, et certe herbaria a nobis 

 visa specimina pluria praebent. Varietas spinosa culta est et inculta. 

 Inter sylvas birmanicas agricolae varietatam hanc varietati fascicu- 

 tat^: anteponunt propterea spinas feroces apri effodere non possunt. 

 Varietas fascicuxata colitur in India et in Java et in insulis aliis 



Malaicis. 



Linnaeus in 1753 applied the name " aculeata " to a 

 drawing in Rheede's Hortus Malabaricus which is too confused 

 to serve as a substitute for a definition. He employed the 

 name more satisfactorily in 1754 : and we apply it as used in 

 that year. This usage is that adopted by many French botan- 

 ists and by the botanists who worked on the Western Coast 

 of India. 



Section 5. Lasiohpyton. 



36. D. Kerrii. Northern Siam near Chengmai. A 

 smaller plant than the allied D. tomentosa. 



D. Kerrii. Tubera, ut videtur, terram alte penetrantia. Caulis 

 basi roseo-tinctus, inermis, parce pilis fulvis hirsutus. Folia alterna, 

 cordata vel ovato-eordata, tenuia, acuminatiuscula, ad 7'5 cm. longa, ad 

 4*5 cm. lata, 5-nervia, nervorum lateralium pare primo in parte superiori 

 supra medium terminato, margine ciliata, supra fera glabra, infra pilis 

 sparsis fuscis subpubescentia : petiolus fere hispidus, ad 3 cm. longus. 

 Flores maris sessiles in spicas cylindricas ad 2 cm. longas singulas vel 

 binas ad axillas foliorum dispositi; axis pubescens, angulatus : bractese 

 ovatae, acuminata^, tenues, margine subhyalinre, glabrae; bracteolse 

 similes, nisi minores et pro rata latiores. Sepala late ovata, obtusa, 

 glabra, viridi-lutescentia, 15 mm. longa. Petala anguste elliptica, 

 subobtusa, quam sepala paululo breviora, colore similia. Stamina 3, 

 sepalis opposita, brevia : anthera tria ovata : staminodia 3 paululo 

 longiora. Flores fceminei ignoti. 



Siam. — Di Sutep prope Chengmai ad 1400 ped. alt. (Kerr, 1404 !). 

 Tvpus in herbario horti botanici Kewensis conservatur. 



