l - CNCFlora

746
Annals of the
Missouri Botanical Garden
longer than petioles, shortly acute and markedly a broad sterile segment rather than having them
inequilateral above, acute to obtuse at base, pri- contiguous or nearly so.
mary lateral veins 6 to 7 per side, concentrating
mostly in lower half of the blade, extending parallel 23. Dieffenbachia seguine (Jacq.) Schott, Wieto
the midrib, then spreading at 25°-30° angle, ner /. Kunst 1829(3): 803. 1829. Arum seguinearly
straight to weakly curved to the margin and ne Jacq., Enum. Syst. P1. 30. 1760. Arum sesweeping
up along the margin, drying moderately guinum, orth. var. Caladium seguinum (Jacq.)
obseure above, convex and darker than surface be- Vent., Mag. Encycl. 30. 1801. Diegenbachia
low; minor veins parallel with obscure and irregular plumieri Schott, Oesterr. Bot. Wochenbl. 69.
ross-veining on drying; surface drying matte, mod- 1852. TYPE: Plumier, Descr. P1. Amer. tab.
el-ately dark yellow-brown above, light brown and 61 (lectotype, designated here). Figures 23,
finely pale-speckled below. INFLORESCENCES 2 30B.
pel axil; peduncles 3.5-5 cm long, drying light CaladiunI niaculatunI Lodd., Bot. Cab. tal. 608. 1822.
brown, 2 mm diam.; spathe 17 cm long, to 3.5 cm
wide when flattened; spadix 14.5 cm long; pistillate
portion of spadix to 8.5 cm long, 4 mm wide; staminate
portion of spadix 5 cm long; mostly sterile
Dieffenbachia niaculata (Lodd.) G. l)on, in Sweet,
Hort. Brit. ed. 3, 632. 1839. Dieffenbflchia niaculata
(Lodd.) Bunting, Baileya 10: 145. l 963, nom. superfl.
TYPE: Lodd., Bot. Cab. tab. 6()8. 1822 (lectotype,
designated here).
segment 2.2 cm long, drying 2 mm diam., with a
few scattered cup-like pistillodes throughout its
length; pistils 59, borne in a cup-like disk; staminodia
mostly missing.
Dic)Jfenbachia literata Schott, Oesterr. Bol. Wochenbl. 68.
1852. Dieffenbachia seguine fo. litllrata (Schott)
Engl., F1. Bras. 3(2): 175. 1878. I)i(.ffenbachia seguine
subvar. Iiturata (Schott) lErlr,l., Bot. Jahrb.
Syst. 26: 568. 1899. Dieffenbachi(l .s(guine var. Iiturata
(Schott) Engl., Pflanzenr. 1V, 2.< Dc(Heft 64):
Distribution and habitat. Dieffenbachifl pittieri
is known only from the type in the Isthmux of Panama
in an area of Tropical moist forest (T-mf) life
zone (Holdridge, 1967) at less than 200 m elevation.
It is most unusual to encounter an endemic
species in this life zone, but the species is distinct
from other species in Dieffenbachia. There is a possibility
that this could be a hybrid between D. kil-
47. 1915. TYPE: based on a cullivtlted collection
fide Schott (not seen). Schott Pailllillr 1874 serves
as the type [microfiche 64. c T] (I( ( lolype, designated
here).
I)ietfienbachia lineata K. Koch 8 BoLlel>, Index Sem.
(Berlin) 14. 1853. Dieffenbachifl seglline fo. Iineata
(K. Koch & Bouche) Engl., F1. Blas. :s(2): 175. 1878.
Dieffenbachia seguine subvar. Iill(ata (Schott) Engl.,
Bot. Jahrb. Syst. 26: 569. 1899. Dicwffenbachia seguine
var. Iiturata (Schott) Engl., Pflanzenr. IV, 23
lipii and D. isthmia because hybridization does oc- Dc(Heft 64): 47. 1915. TYPE: New Cranada, based
c ur in the wild in Dieffenbachia. Its greatest on a cultivated collection at the Bf rlin Botanical
Garden, not sczen. Schott illustratioll 1867 serves as
esemblance is with D. killipiiS which also occurs the type [microfiche 64 d T] (le(lol!|)e, designated
in this area and dries a similar color. Dieffnenbachia here).
pittieri differs from D. killipii in having a dark Di().ffenbachia robusta Schott, Oesterr. I3OI. Wochenbl. 65.
brown, smooth-drying stem (light yellow-brown, 1854. Dieffenbachia seguine var. robllsta (K. Koch)
Engl., Bot. Jahrb. Syst. 26: 568. 1Xf39. TYPE: Lousually
conspicuously ridged stems for D. killipii), cality unknown, cultivatczd colle( tioll of unknown orfully
sheathed petioles (usually with the petiole igin at Berlin Botanical Garden. S( hott illustrations
sheath ending well below the base of the blade for 1907-1908 serve as the type [mi( I-ofi( he 66 b2, b3]
D. killipii), blades with the midrib flat on the upper (lectotype, designated here).
Dicvffenbachia consobrina Schott, Syn. Aroid. 131. 1856.
surface ("square-raised" for D. killipSi), and a spa- TYPE: Brazil. Rio Negro, Martius s. rl . (holotype, M) .
dix with the pistillate and staminate portions widely Dieffenbachia poeppigii Schott, Syn. A Z oi(l. 130. 1856.
separated by a long, mostly sterile portion (vs. with TYPE: Peru. Without locality, Poep/)ig s.n. (holotype,
the pistillate and staminate portions more or less
W destroyed during World War II); S( hott illustration
1903 serves as the type (microfiche 64. b 6) (lectocontiguous
in D. killipii).
type, designated herc).
Dieffenbachia pittieri has been confused with D. Dieffenbachia cognata Schott, Syn. Aroid. 130. 1856.
Obscurinervia (Standley, 1944; Croat, 1978), but it TYPE Suriname. Paramaibo, I}Iartius s.n. (holotype,
proved to share little in common with that species
M). [See also Schott paintings 1845 & 1846.]
Di().ffenb(lchi(l gollnterian(l Sf hott, Oesterl. Bot. /. 8: 387.
once the type specimen was examined. It differs l858. rl=YPE: Venezuela. Without lo( ality, Collmer
from that species in having smooth, not scurfy s.n. (holotype, B apparently lost); Sf hott drawing
stems, unspotted, fully sheathed petioles, blades 1857 (microfiche 64 b. T) serves as the type (lectowith
distinct primary lateral veins and with a midtype,
designated here).
Die.JJenbachia neglecta Schott, Bonplandia T: 30. 1859.
rib flat, not "square-raised" above, and a spadix TYPFi: Jamaica. Without localityS Distin (holotype,
with pistillate and staminate portions separated by K!).