I 



8 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [VOL. 10 



Type: "In arenosis prope Joden-Savanna (Cordonpad), fl. Novembri Hb. 

 Keg [el], n. 1131." Suriname. 



Specimens examined: SURINAME: Geijskes Creek, Coppename River Headwaters, Ma- 

 guire £4176 (F, NY); Tafelberg, Maguire 24215. BRITISH GUIANA: Rupununi Cattle 

 Trail, Abraham 301 (NY); Kaieteur Savanna, Jenman 1020 (NY). VENEZUELA: Terri- 

 torio Amazonas: Yavita: Maguire 29277 (NY), a robust specimen with characters of var. 

 guayanensis ; Williams 13910 (F), 13931 (F), both robust specimens. Maroa: Williams 16140 

 (F); Maguire $ Wurdack 35687 (NY), 36424 (NY). COLOMBIA: Vaupes: Garcxa-Barriga 

 14277 (COL), 14334 (COL), 15021 (COL), 15038 (COL); Schultes 18386 (COL); Schultes 

 # Cabrera 13179 (COL), 17555 (COL), 19722 (COL), 19645 (COL), 19687 (COL), 19754 

 (COL); Schultes, Baker $ Cabrera 18009 (COL). BRAZIL: Amazonas, Manaos (Barra) : 

 Guedes 12 (COL); Killip # Smith 30164 (NY); Spruce 1654 (NY), isotype of A. grandis 

 var. minor Spruce ex Malme. 



Lanjouw 5 has presented evidence to show that a third inner membranons 

 sepal is present in flowers studied by him, of Abolboda grandis, presumably col- 

 lected in coastal Suriname savannas. A year and a half later, he restates his 

 original proposition. 



I have examined with some care young flowers (pre-anthesis) in some 20 

 sheets of A. grandis, but have found the third sepal present only in one — and 

 that specimen from Suriname. It is suggested that the third sepal is not char- 

 acteristic for the species as a whole, but may be found in local Suriname 

 populations. 



Abolboda grandis var. guayanensis Maguire, var. nov. 



Folia vulgo 10-20, 20-50 cm longa, 15-20 mm lata ; scapis 1-5, 5-10 dm altis, 

 vulgo cum 3-4, rare 2 jugis vaginorum ; spicis ovoideis vel subglobosis, 20-25 

 mm longis, 10-15-floris; sepalis 2, inaequilateralibus, aliquantum recurvatis, acu- 

 tis, valde carinatis, 12-16 mm longis ; bracteis omnibus fertilibus, ecarinatis, quam 

 sepalis brevioribus ; corollis ca. 2.5 cm longis, aliquantum irregularibus ; antheris 

 ca. 4 mm longis, sagittatis; ovariis elliptico-oblongis ; stylis ca. 15 mm longis, 

 trigonis, acute angulatis ; appendicibus 2, clavatis, reflexis, simplicibus, ca. 3 mm 

 longis; stigmatibus 3-partitis, partibus 2.5 mm longis, fimbriatis; capsulis ellip- 

 tico-compressis, ca. 8 mm longis; seminibus ca. 1.2 mm longis, oblique obovatis, 

 fere 12-14-costatis. 



Type : leaves rather soft, in hummocks, flowers ephemeral, blue, frequent, 

 open savannas, Campo Grande, Cerro Sipapo at 1500 m alt., Dec 8, 1948, Terr. 

 Amazonas, Venezuela, Maguire & Politi 27561. 



Paratypes: BRITISH GUIANA: Pakaraima Mountains: Kaieteur Savanna, Hollister in 

 1936 (NY); Maguire $ Fanshawe 23148 (NY, F), very similar to the type; Membaru Creek, 

 Pinkus 223 ; Imbaimadai Savannas, Maguire $ Fanshawe 32192. VENEZUELA : Amazonas : 

 Cerro Sipapo, Maguire Politi 27497; 27561 (holotype NY, isotype NY); 28206; 28218: 

 28354; 28702 (intermediate to var. rigida). Cerro Duida, Maguire, Cowan $ Wurdack 29623; 

 Cerro Guanay, Maguire, Phelps, Hitchcock, $ Budowski 31702. 



Abolboda grandis var. rigida Malme, Bull. Torrey Club 58: 326. 1931. 



Abolboda pervaginata Malme, Ark. Bot. 25A 12 : 16. 1933. 

 Abolboda rigida (Malme) Steye,rmark, Fieldiana Bot. 28: 105. 1951. 

 Not A. rigida Gleason. 



Type : Brocchinia Hills, summit of Mount Duida, Terr. Amazonas, Venezuela, 

 at 4500 ft alt., Jan 4, 1929. G. H. H. Tate 586 (holotype NY, photo NY, F). 



5 Rec. Trav. Bot. Neerl. 34: 492. 1937. 

 6 Meded. Mus. Herb. Univ. Utrecht 53: 4. 1939. 



