Serjania morii Acev.-Rodr.
-
Authority
Acevedo-Rodríguez, Pedro. 1993. Systematics of Serjania (Sapindaceae) Part I: A Revision of Serjania Sect. Platycoccus. Mem. New York Bot. Gard. 67: 1-91.
-
Family
Sapindaceae
-
Scientific Name
-
Type
Type. Brazil. Bahia: Santa Cruz de Cabralia, 4-6 km E of ecological station Pau-Brazil (ESPAB), ca. 17 km W of Porto Seguro, on old road to Santa Cruz de Cabralia, disturbed Southem-Bahianmoist forest, 16°23'S,39°08'W,40m, 19 Oct 1978 (fl), Mori et al. 10855 (holotype, CEPEC; isotypes, NY, US).
-
Description
Species Description - Woody vine. Stems slender (less than 1 cm wide), sharply triangular, the angles covered with stiff, coarse, 1.5-2 mm long, rusty hairs; cross section of stem with central, rounded, large stele with hollow medulla and three peripheral, smaller, rounded steles. Stipules oblong, 0.2-0.7 cm long, acute, ciliate atmargin. Leaves temate, 15-20 x 20-21 cm; petioles not winged, much shorter than leaflets, cylindric, slightly swollen at base, adaxially furrowed and covered with minute (0.5 mm), curled, ferruginous hairs; leaflets chartaceous, glabrous except for a few hairs on margins and adaxial surface of veins, abruptly acuminate at apex, with repanddenticulate margins, terminal leaflet oval, 11-13 x 7-8.3 cm, the base rounded or obtuse, decurrent into a more or less prolonged (1-2 cm) petiolule, lateral leaflets oval-oblong to obovate, sometimes oblique, base rounded, shortly petiolulate. Inflorescence axillary, three times longer than subtending leaf, the axis sparsely covered with erect, 1 mm long, rusty hairs; bracts narrowly oblong, 5.2 x 1 mm , with ciliate margins and acuminate apex; cincinni alternate, 1 -1.5 cm long, densely covered with minute, rusty, curled hairs, usually 5-flowered; bracteoles lanceolate, ca. 3 mm long; pedicel ca. 4 mm long, articulate near base, densely covered with minute (0.15 mm), yellowish, inflexed hairs. Flowers with sepals with same indument as pedicel, especially on adaxial surface, the outer sepals ca. 4 mm long, ovate, with obtuse apex, the inner sepals 5-5.5 mm long, ovate-elliptic, witii obtuse apex, third and fifth sepals connate from 1/4 to 2/5 of their lengtii; petals white, 6.5-7.5 mm long, broadly spatulate, adaxially minutely papillose, the apex rounded; the appendages ofcentral petals 5 mm long, hood-shaped, with fleshy, crown-shaped apex and ciliate margins, the appendages of lateral petals 4 mm long, with slightly fleshy apex and ciliate margins; disk glands 4, the central glands 1.5 mm long, broadly ovate in outline, and obtuse at apex, the lateral glands reduced, ca. 0.7 mm long, annular; filaments puberulent, the anthers ellipsoid, ca. 1 mm long; ovary not seen. Fruit and seeds not seen.
-
Discussion
Fig. 35a-g Serjania morii is placed in S. sect. Platycoccus even without knowledge of its fruits, because it is very similar to S. cuspidata. These species share similar stem indument and general flower morphology. However, S. morii differs by its wide elliptic to oblong-oval (vs. ovate to subtrilobate) leaflets, repand denticulate (vs. dentate) margin, essentially glabrous (vs. tomentose)leaflets, and third and fifth sepals connate 1/4 to 2/5 (not 2/3 to 3/4) of their length. The name of this species honors Dr. Scott A. Mori, collector of the type and specialist in neotropical Lecythidaceae, who has done extensive work in eastem and central Brazil.
-
Distribution
Distribution. Serjania morii is known only from the type (Fig. 36).
Brazil South America|