140 NORTH AMERICAN FLORA [Volume 25 



Leaf-blades suborbicular in outline, sinuate-pandurate. 14. S. angulosinn. 



Leaf-blades ovate to lanceolate in outline, entire, toothed or 

 somewhat palmately lobed. 

 Samara-wing relatively narrow, constricted above the 

 samara-body. 

 Leaf -blades of a narrowly ovate type, rather long-acu- 

 minate. 15. .S\ convolvulifolium. 

 Leaf -blades of a broadly ovate type, rounded, acute or 

 short-acuminate. 

 Samaras 2-2.5 cm. long ; leaf-blades mucronate. 16. 5. Humboldtianum. 

 Samaras 2.5-3 cm. long ; leaf -blades short-acuminate. 17. S. Lindenianum. 

 Samara-wing very broad, not constricted above the samara- 

 body. 18. S. sericans. 

 Samara-wings erect, tapering to the apex. 19. .S\ puberum. 

 Wing of the samara about as long as the body or much shorter. 

 Leaf-blades glandless on the margins ; samara-body crested. 



Leaf-blades hastate ; corolla less than 2 cm. wide. 20. 5\ sagitlatitm. 



Leaf -blades pinnately 5-7-parted ; corolla over 2.5 cm. wide, 21. S. palmatum. 



Leaf-blades glandular on the margin or glandular-ciliate ; samara- 

 body rugose. 

 Petal-blades erose ; leaf-blade with a shallow open sinus at the 



base. 22. 5. grenadense . 



Petal-blades fimbriate ; leaf-blade with a deep closed sinus at the 

 base. 23. 5. cilialum. 



1. Stigmaphyllon tomentosum (Desf.) Niedzu. Gen. 

 Stigmat. 1:5. 1899. 



Banisteria emarginata Cav. Diss. 425, in part. 1790. 



? Banisteria ftoribunda DC. Prodr. 1 : 589. 1824. 



Banisteria tomenlosa Desf. (Tab. Ecol. Bot. 136 ; hvponym. 1804) ; DC. Prodr. 1 : 589. 1824. 



Stigmaphyllon emarginalum A. Juss. Ann. Sci. Nat. II. 13: 290, in part. 1840. 



Stigmaphyllon diversifolium Griseb. Fl. Brit. W. Ind. 119. 1859. Not S. diz'ersifo/iitm A. ]uss. 



1840. 

 Stigmaphyllon floribundtim Stahl, Estud. Fl. Puerto Rico 2 : 147. 1884. 



Leaf-blades ovate, oblong-ovate, oval, or suborbicular, 6-15 cm. long, rounded and 

 notched and usually mucronate at the apex, glabrous or nearly so above, except near the 

 base, closely pubescent beneath, rounded or subcordate at the base, short-petioled ; pedun- 

 cles and pedicels densely or copiously pubescent ; sepals suborbicular or orbicular-reniform, 

 2.5-3 mm. long, the glands one half the length of the sepal-body or more; larger petals 

 10-12 mm. long ; samaras 2-2.5 cm. long, the ventral edge of the wing prolonged into an 

 oblique auricle at the base. 



Type locality : Tropical America. 

 Distribution : Porto Rico. 



2. Stigmaphyllon emarginatum (Cav.) A. Juss. Ann. Sci. 



Nat. II. 13 : 290. 1840. 



Banisteria fulgens L. Sp. PI. 427. 1753. Not Stigmaphyllon fulgens A. Juss. 1840. 



Banisteria emarginata Cav. Diss. 425. 1790. 



Banisteria splendens Macfad. Fl. Jam. 152. 1837. Not B. splendens DC. 1824. 



Leaf-blades ovate to oblong, 1.5-7 cm. long, rounded and notched, and usually mucro- 

 nate at the apex, sparingly pubescent above, usually closely pubescent beneath, truncate 

 or subcordate at the base, short-petioled ; peduncles and pedicels permanently closely 

 pubescent; sepals oval or oval-ovate, 3.5-4.5 mm. long, the glands one half the length of 

 the sepal-body or more ; larger petals 12-16 mm. long ; samaras 2-2.5 cm. long, the ven- 

 tral edge of the wing produced into a rounded spreading auricle at the base. 



Type locality : America. 

 Distribution : Jamaica. 

 Illustration : Cav. Diss. pi. 249. 



3. Stigmaphyllon lingulatum (Poir.) Small. 



Triopteris lingulata Poir. in Lam. Encyc. 8: 104. 1808. 



Banisteria umbellulata DC. Prodr. 1 : 588. 1824. 



Banisteria periplocifolia Desf. (Tab. Ecol. Bot. 136; hyponym. 1804) ; DC. Prodr. 1 : 589. 1824. 



''Banisteria periplocifolia angustifolia DC. Prodr. 1 : 589. 1824. 



? Banisteria periplocifolia su'bovata DC. Prodr. 1 : 589. 1824. 



Banisteria microphvlla Hamilt. Prodr. 40. 1825. Not B. microphylla Jacq. 1768. 



Stigmaphyllon periplocifolium A. Juss. Ann. Sci. Nat. II. 13: 290. 1840. 



Banisteria laurifolia Rich.; A. Juss. Arch. Mus. Paris 3 : 380. 1843. Not B. laurifolia L- 1762. 



