CALADIUM 



CALADIUM 



615 



BB. Lf. not as above; basal lobes united one-third their 



length or less. 

 C. Shape of If. ovate-triangular, or ovate-sagittate (8-47). 



8. bicolor, Vent. (Arum bicolor, Ait.). Petiole 

 smooth, 3-7 times as long as the blade, pruinose toward 

 the apex; blade ovate-sagittate, or ovate-triangular, 

 variegated above, glaucous beneath; upper lobe semi- 

 ovate, narrowing gradually to a cuspidate point, the 

 basal ones one-half to but little shorter than the upper, 

 oblong-ovate, obtuse, connate one-fifth to one-third 

 their length. S. Amer. Intro, into cult, in 1773. B.M. 

 820. Very common in cult., furnishing many of the 

 fancy-leaved caladiums. The marked varieties are 

 as follows (9-47) : 



(1) Lf. -blade and veins of one color. 



9. Var. Vellozianum, Engl. (C. Vellozianum, Schott. 

 C. Purdiednum, Schott. C. pusillum, C. Koch. C. 

 Sprucednum, Schott. C. firmulum, Schott.). Lf.- 

 blade dark green above; basal lobes connate past the 

 middle. Brazil, Peru. R.B. 10:169. 



(2) Lf. -blade more or less variegated. 

 (a) With a colored disk (Nos. 10-18). 



(b) Disk transparent. 



10. Var. transparens, Engl. (C. transparent, Hort.). 

 Blade with a pale green, nearly transparent disk; mid- 

 rib and primary veins red-purple. 



11. Var. rubicundum, Engl. (C. bicolor, Kunth). 

 Petiole green, or variegated green and violet; blade 

 green, with a red, transparent, central disk, and a very 

 narrow red line between the disk and the margin. 



(bb) Disk opaque. 

 (c) Purple disk. 



12. Var. Baraquinii, Engl. (C. Bardquinii. Hort.). 

 Petiole violet; blade with a purple-red disk; beautiful 

 green between the disk and margin; nerves and midrib 

 red-violet. Para. I.H. 7:257. F.S. 13:1378. 



13. Var. Ketteleri, Engl. (C. Ketteleri, Hort.). Peti- 

 ole crimson, variegated toward the base; blade with 

 purple disk, midrib and primary veins, sparsely marked 

 between the veins with many small, rosy spots. 



(cc) Red disk. 



14. Var. splendens, Engl. (C. roseum, Hort. C. 

 splendens, Hort.). Petiole green below, red above; 

 blade with a red disk at the middle; mid vein and 

 primary veins red-purple; green between the nerves 

 and along the margin. Lowe, 4. 



15. Var. Leopoldii, Engl. (C. Leopoldii, Hort. C. 

 Gserdtii, C. Koch. C. Rogierii, Chant. & Lem.). Petiole 

 violet beneath, red-purple above; blade with a broad, 

 reddish disk; margin green, red-spotted; midrib and 

 primary veins dark red-purple. Para, 1864. 



16. Var. albomaculatum, Engl. (C. Alfred Bleu). 

 Petiole green; blade green, with red disk, midrib and 

 primary veins, and marked clear to the margin with 

 many large, white spots between the nerves. 



(ccc) Rose disk. 



17. Var. Chantinii, Engl. (C. Chdntinii, Lem. C. 

 Connsertii, Hort. C. amoenum, Hort. C. Marter- 

 steigidnum, Hort. C. punctatissimum, Hort. C. Haage- 

 dnum, Hort.). Fig. 732. Petiole more or less violet; 

 blade broadly red-purple along the midrib and primary 

 nerves, rosy at the center, and with very numerous, 

 unequal spots between the nerves clear to the marginal 

 vein. Para, 1858. I.H. 5:185. F.S. 13:1350-51. B.M. 

 5255. A.F.8:129. G. 12:375. 



(cccc) Light green disk. 



18. Var. Houlletii, Engl. (C. Houlletii, Lem. C. 

 Mooreanum, Hort.). Petiole green, the sheath and a 

 little of the base violet- variega ted ; basal lobes of the 



blade somewhat introrse, rounded, connate one-third; 

 blade obscurely green toward the margin, the midrib 

 and primary veins slightly reddish, and with a pale 

 disk marked with many irregular white spots. 



(aa) Without a colored disk. 



(b) Margins colored throughout. 



(c) Red margin. 



19. Var. marginatum, Engl. (C. marginatum, C. 

 Koch). Blade dark green, with a red line on the outer 

 margin. 



(cc) Yellow margin. 



20. Var. Kramerianum, Engl. (C. Krameridnum, 

 Hort.). Veins purple; yellow margin. 



21. Var. Stangeanum, Engl. (C. Stangeanum, C. 

 Koch). Blade reddish; green along the narrow mar- 

 gin, yellowish toward the margin. 



(ccc) Solid white margin. 



22. Var. Perrierii, Engl. (C. Perrieri, Lem.). Petiole 

 violet-black; blade dull green, with many red-purple 

 spots, and white along the margin. Brazil, 1861. 



(cccc) Spotted margin. 



23. Var. Eckhartii, Engl. (C. Eckhartii, Hort.). 

 Petiole violet-blotched at the base, green above the 

 middle; blade green, with few rosy spots along the mar- 

 gin, and small white ones in the middle. 



24. Var. Henderspnii, Engl. (C. Hendersonii, Hort.). 

 Petiole variegated violet and green, reddish toward the 

 apex; blade mostly green, reddish next the lower parts 

 of the nerves; midrib and primary veins red-purple 

 spotted; small red spots along the margin. 



25. Var. Sieboldii, Engl. (C. Sieboldii, Hort.). 

 Petiole violet and green, reddish toward the apex; basal 

 lobes of the If. somewhat introrse, connate one-third 

 their length, dark green; midrib and primary veins 

 beautifully red-purple spotted, and a very narrow white 

 border, marked with small purple-red spots. A.F. 

 8:127. 



(ccccc) Purple margin. 



26. Var. Houbyanum, Engl. (C. Houbyanum, Hort.). 

 Petiole dirty green on the lower surface, bright red 

 above; blade bright green, with large pale spots, and 

 small red-purple ones between the midrib and primary 

 veins; a red-purple spot above the insertion of the peti- 

 ole, and a pale purple line around the margin. 



27. Var. pellftcidum, Engl. (C. pellucidum, DC.). 

 Petiole reddish, variegated with violet; blade broadly 

 reddish purple spotted along the midrib and primary 

 veins, and more or less marked with transparent, red- 

 dish purple spots between the primary veins; a con- 

 tinuous purple line along the outer margin. 



(bb) Margin colored only on basal sinus. 



28. Var. Devosianum, Engl. (C. Devosianum, Lem. 

 C. Wdllisii, Hort. C. Ottonis, Hort.). Petiole green; 

 blade bright green, with small, irregular white spots 

 between the midrib and primary veins, and a narrow 

 crimson border at the sinus. Para. I.H. 9:322. 



29. Var. haematostigmatum, Engl. (C. hsematostig- 

 matum, Kunth. C. pellucidum, DC. C. discolor, Hort.). 

 Petiole violet; blade dark green, with a purple line on 

 the basal sinus, and sparsely marked with blood-red 

 spots. Para. 



30. Var. poecile, Engl. (C. pceclle, Schott. C. pallidi- 

 nervium, Hort.). Petiole reddish brown, or closely 

 streaked- variegated; blade dark green; midrib and 

 primary veins paler, often whitish; a red-purple spot 

 where the petiole joins the blade, narrowly purple-mar- 

 gined in the sinus. Brazil. 



31. Var. regale, Engl. (C. regale, Lem. C. Wdgneri, 

 Hort. C. surinamense, Miq. C. sagitteefolium, Sieb.). 

 Blade bright green, purple-margined at the sinus, every- 



