l - CNCFlora

724
Annals of the
Missouri Botanical Garden
In Panama the ranges of D. oerstedii and D. Dil- at Rio Agua Salud, Croat 12353 (MO); Rio Frijol on Pipelipii
do not actually overlap, but come close in Chi- line Rd., 6 m N of Gamboa, Tyson 1443 (FSU, MO, SCZ);
Frijoles-Monte Lirio, Killip 12154 (US); N of Frijoles,
riqui on the western slopes of the country. All Standley 27413 (US); W of the Canal, near Gatun, Stanknown
collections there occur in the mountains at dley 27224 US); rd. S-10 N of Escobal near junction with
900 to 1300 m. Dieffenbachia oerstedii occurs in Rd. S-1, Croat 12489 (MO); 1.5 mi. N of Escobal, Croat
Panama in western Chiriquf Province at highland 12491 (MO, SCZ); near Limbo Gun Club camp, 10 mi. W
of Gamboa on Pipeline Rd., Lazor & Tyson 3492 (FSU);
sites and with an outlying population at E1 Cope in
lake shore along Gatun River valley, Pittier 6845 (US);
Cocle Province, while D. killipii ranges in general vic. Gamboa, Pittier 2600 (US); Pipeline Rd. N of Gamno
further west than the Azuero Peninsula and Ver- boa, Kennedy 455 (F). Chiriqui: 8.8 km past Gualaca on
aguas Province in Panama. There is an unusual rd. to Chiriquf Grande, Hoover 1324 (MO); Gualaca-Foroutlying
population of D. killipii in the area of the tuna Dam site, 2.8 mi. beyond Los Planes, Croat 48816
(MO); Cerro Colorado, 15.6 mi. above Ri) San Felix, Croat
Osa Peninsula in Costa Rica (Kennedy 1594). A 48437 (MO). Cocle: E1 Limon, Merl(li(ta 1-10 (PMA),
collection from Cerro Colorado (Croat 48437) in Mendieta 1-101 (PMA), Mendieta 1-121 (I'MA); vic. of E1
Chiriqui Provin(e has blades slightly larger than Cope, PN E1 Cope, 5-6 mi. N of 191 (3ope, below Old
most specimens of the species.
Rivera saw works area, Croat & Zhu 76746 (CAS, DUKE,
MO); 5 hours' walk N from Alto Calvalio to Rio Blanco,
Croat 74785) from La Mesa in Cocle Province,
Sytsma et al. 2414 (MO); La Mesa, al)ove E1 Valle de
Panama, is unusual in having a series of rather Anton, Croat 14388 (MO), Croat 14X()(9 (MO); trail beyond
prominent collee tive veins and in having the minor La Mesa towards Los Llanos and the l)ol(ler between Cocle
veins distine t when fresh (typically they are rather and Panama Provinces, N of E1 Valle (It Anton, Luteyn
obscure). It WilEe in fact, so unusual that it was ini-
3175 (DUKE), Croat 37383 (MO); I ,(l Me sa above E1 Valle,
Gentry 7423 (MO, NY); 5 mi. N ol El Valle de Anton
tially mistakell for a Xanthosoma. It is, however, Luteyn 1203 (DUKE); La Mesa trail towtlt(ls Cerro Cara
within the (legree of variation for D. killipii. coral, NE of E1 Valle de Anton, Lut(yl1 S/80 (DU1EtE); vic.
Kress 77-8.X() and 77-831 from the vicinity of E1 Valle, Bartlett & Lasser 16678 (MlX,XlJ, MO); Penono-
Santa Fe in Velaguas, Panama, are unusual collec- me-Coclecito, 5.6 mi. N of Llano Clallde, along Rio Cascajal
5.6 mi. N of Llano Grande, 1.4 Illi. 1N of Cont. Ditions
in havi1g the staminate and pistillate portions
vide, Croat 67480 (MO, SCZ); at L.l Mesa! 3.2 mi. above
of the spa(lix sie)arated by as much as 1 cm. In E1 Valle, 0.1 km E of Finca Macalelsita, Croat 74789
this regard tlley are similar to D. Iutheri, but differ (MO), Croat 74792 (INB, MO, I'MA)* Ctl. I km W of rd.
from that sl)e( ies in lacking the granular puberu- betw. Finca Mandarinas and Fin(l l7tlosr, Croat 67197
lent major veills on the lower blade surface. (MO); area between Cano Blan(o (lel Norte, Cano Sucio
and Chorro del Rio Tife, Davidse & llolll illon 23599 (MO);
Some colle( tions of the species from Darien rd. to Coclesito, logging camp 12 1lsi. 1'l0lil Llano Grande,
Province, Panama (e.g., Antonio & Hah77 4405, Churchill et al. 4032 (MO), Churallill (1 (tl. 4125 (MO), 7
Duke 15591, lvolar7>co 1485, and Schmalzel 1212), km N of E1 Cope, near Rivera SawXlille /olsom & Collins
are unusual in having petioles more fully sheathed, 6436 (MO); La Mesa, above E1 Valle (Je Ant6n, ca. 2 km
W of Cerro Pil6n, Croat 37479 (M(), I'MA, WU); base of
sometimes to less than 1 cm from the base of the
Cerro Pil6n above E1 Valle, Gentry & I)ll1^ ( r 3643 (DUKE,
blade or even with the petiole sheathed throughout. F, MO). Colon: PN Chagres, See( iols lJo(luer6n, Rio San
The Costa ltican population of D. killipii is note- Juan de Pequeni, Espinosa et al. S()l l (I'MA), Espinosa
worthy in that the single collection made there in & Guerra 3762 (PMA), Espinosa (t *X.l. 4478 (PMA); Dist.
the Osa Peninsula is quite disjunct from the nearest Donoso, Campamento Botija, J. I' )le.leo et al. 1905
(PMA); Rio Providencia, 12 mi. S ol (olorl, Tyson & Blum
population in Panama, where the species has not 3954 (FSU, SCZ); Rio Guanche, betlwe X ls I'uerto Pil6n and
been collecte(l west of Cocle Province. The species Portobelo, ca. 1.5 mi. S of rd., Cro(lt & %hu 76253 (MO,
is to be expet ted at other sites in Veraguas and in PMA), Croat & Zhu 76259 (MO, XlX l,, S(2Z); lower Rio
Chiriqui Prov i nce, Panama.
Guanche, Dressler 4688 (PMA); N ol l{fo (Juanche, Dav-
Etymology. The species is named in honor of
idse & D7Arcy 10098 (MO); Rfo (,tlull( he, 3-5 km above
bridge on Col6n-Portobelo Rd., Cro(lt 7(9329 (MO), Croat
the late E. P. Killip, botanist at the U.S. National 79359 (MO), Sytsma 1658 (MO); rlear Peluca, km 25.6
Herbarium and one of the more prodigious plant from Transisthmian Hwy. on rd. to Norrll)re de Dios, Kencollectors
in the Neotropics, who was one of the nedy 2661 (MO); ca. 8 km E of Pina, Thompson 4816
earliest collectors of this new species.
(CM, MO); Portobelo-Nombre de Dios, 1.2 mi. beyond the
jet. of rd. to Isla Grande, Croat 49805 (INB, MO); Nuevo
Paratype.s. COSTA RICA. Puntarenas: Osa Penin- Tonosi-Rio Indio, Portobelo-Nombre de Dios, Croat 33551
sula, 2.5 mi. SW of Rinc6n, Kennedy 1594 (MO). PAN-
AMA. Bocas del Toro: Cerro de Bocatorito, Peterson &
Annable 6768 (MO). Canal Area: 12 mi. S of Col6n, Tyson
et al. 4486 (SCZ); 12 mi. S of Col6n, near Rio Providencia,
Tyson & Blum 3997 (MO, SCZ); Pipeline Rd. 10
mi. from Gamboa gate, Croat 15082 (DUKE, MO), ca. 7-
8 km N of Gamboa, XKnapp 2275 (MO); Pipeline Rd. near
(AAU, MO, QCNE); Achiote, McPherson 9176 (MO); Santa
Rita ridge rd., ca. 22 km from transisthmian hwy., Hammel
et al. 14472 (MO). Darien: Quebrada Biboto (Peccary)
off Rio Areti, Duke 13601 (MO); 1-3 mi. N of Paya,
Duke & XKirkbride 14019 (MO); Rio Cocalito, Whitefoord
& Eddy 136 (BM, MEXU, MO); PN Cerro Pirre, vic. headquarters
on Rio Perisenico, Croat & Zhu 77102 (COL,
Gamboa, Clewell & Tyson 3306 (MO, SCZ); Pipeline Rd. HUA, INB, L, MO, NY, QCA, SCZ, TEFH, US, VEN);