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102 FIELDIANA: BOTANY, VOLUME 28
alto; foliorum petiolo modice valido, 12-25 cm. longo, supra mediam
vagina 1-1.5 cm. lata sursum angustata apice obtusa inferne dilatata
instructo; lamina coriacea, elliptic o-oblonga, apice abrupte breviter
cuspidata, basin versus subcuneatim contracta, 16.5-32 cm. longa,
7.5-12 cm. lata, nervis primariis numerosis angulo 40 -45 a costa
valida adscendentibus; pedunculo 8.5 cm. longo; spatha pallidoviridi
ovata, apice abrupte acuminata, 7.5 cm. longa, 5.5 cm. lata;
spadice lineari-cylindrico 4.5 cm. longo, 8 mm. crasso, stipite 8 mm.
longo suffulto; pistillo 2.5 mm. longo, prismatoideo-hexagono, vertice
truncato, 2.5 mm. lato; ovario uniloculari; ovulis 12-14.
Leaves dark green and shining above, silvery pale green below;
spathe pale green.
Type in herb. Chi. Nat. Hist. Mus., collected on rich steep wooded
slopes, Alto de Lirio, between Bramon and Las Delicias, state of
Tachira, alt. 1890-2285 m., July 18, 1944, Julian A. Steyermark
57455 (2 sheets).
This species
is related to S maximum Engl. and S. multiovulatum
(Engl.) N. E. Brown, but has a shorter spadix than S. maximum, and
a shorter spathe and spadix than S. multiovulatum. It is further distinguished
by the large leaves, the petiole vaginate only to above
the middle, and a long peduncle.
I
rospatha savannarum Steyermark, sp. nov.
Planta terrestris; foliis basalibus; foliorum petiolo 58-63 cm.
longo; lamina hastato-sagittata, 17-20 cm. longa, lobo antico lanceolata
9.5-11 cm. longa, 2.3-3 cm. lata, lobis posticis anguste lanceolatis
vel oblanceolatis, 8-10.5 cm. longis, 1.5-1.7 cm. latis, sinu
angusto parabolico sejunctis, nervis primariis lobi antici infimis adscendentibus
marginem patentibus, superioribus adscendentibus in
apice exeundibus, nervis primariis loborum posticorum utrinque 3
adscendentibus, in latere interiore in margine exeuntibus, latere
interiore in margine exeuntibus, latere exteriore dichotomis; pedunculo
7 dm. longo; spatha lanceolata longe caudata, 18.5 cm. longa,
inferne expansa circ. 2 cm. lata, superne recurvata, intus purpureoviridi,
extus brunneo-viridi; spadice lineari-cylindrico, 3.5 cm. longo,
4 mm. crasso; floris tepalis 4, spatulatis, 2.5 mm. longis, apice
rotundatis 1.8 mm. latis; pistillo oblongo-cylindrico, 2 mm. longo;
ovario uniloculari; ovulo unico; staminibus 4; filamentis latiusculis
1 mm. longis, 1 mm. latis.
Leaves grass green above, dull green below; inflorescence erect;
spathe recurved above, lavender-green within, bronze green without;
spadix pale gray-green above, pale gray-lilac below with brownlavender
spots; ovary 1-celled, the single ovule arising from the
base at one side (Fig. 15).
Type in herb. Chi. Nat. Hist. Mus., collected along rill in savanna,
Sabana Grande, at southeastern base of Cerro Duida, Territorio