Three New Annonaceae From Panama
1955; Missouri Botanical Garden; Volume: 42; Issue: 2 Linguagem: Inglês
10.2307/2394599
ISSN2162-4372
Autores Tópico(s)Plant and Fungal Species Descriptions
ResumoANAXAGOREA Allenii R. E. Fr. n. sp.-Arbor circ, 6 m. alta; ramuli novelli brevissime rufo-tomentelli. Foliorum petiolus 10-12 mm. longus, crassus; lamina papyracea, (exsiccata) flavo-viridis, supra glaberrima laevisque, subtus demum glaber et pallidior, oblongo-lanceolata, basi rotundata, apicem versus sensim longeque angustata, 30-35 cm. longa et 8-10 cm. lata; costa supra subplana, subtus valde prominens, teres, rugosus; nervi laterales I. utrinque circ. 15, sub angulo circ. 800 exeuntes, deinde sursum curvati, sicut venulae subtus paulo elevatae. Pedicelli florum breves (3-5 mm. longi), crassi, sicut sepala et petala rufo-tomentelli, juxta calycem bractea vaginaeformi instructi. Sepala ovato-orbicularia, apice rotundata, non recurvata, 7-10 mm. longa. Petala crassa, exteriora oblonga, apicem rotundatum versus haud angustata intus apicem versus carinata, ad 12 mm. longa et 5 mm. lata; petala interiora lanceolata, acutissima, ad mediam partem pilosa et supra medium intus carinata. Stamina linearia, 3 mm. longa; appendix connectivi tenuis, circ. 0, 7 mm. longa, apice rotundato-truncata. (Fructus ignotus). CANAL ZONE: Quebrada Lopez, alt. 30 m., in flower, Feb. 11, 1940, P. H. Allen 2143 (Type in Herb. Missouri Bot. Garden). This species is very like the Anaxagorea crassipetala Hemsl., found in Guatemala and Nicaragua, but differs from this especially in its leaves being larger, rounded at the base, and with much-elongated, almost thread-like apices; in its pedicels being short and thick, in its sepals being longer and of rounded oval, not triangular-shape, and its outer petals longer and not tapering toward their apices. it is also similar to Anaxagorea dolichocarpa Sprague and Sandwith, from which it differs by sepals rounded at the tips and not retroflexed, short inner petals, shorter stamina, etc.
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