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



Abolboda macrostachya var. angustior Maguire 3 var. nov. Figure 3. 



Folia angustissima, 10-30 cm longa, 2-6 lata, acute acuta; scapis 1-nonnullis, 



3- 5 dm altis, bracteis vaginatis 2-jugis ; spicis cylindricis, 3-5 cm longis, 6-8 mm 

 latis, vulgo 10-15-floribus ; bracteis naviculoideis non carinatis, oblanceolatis, 

 induratis, scariosomarginatis, minute umbo-mucronulatis 12-14 mm longis; se- 

 palis 2, subaequalibus scariosis (earinis exeeptis), acutis, appositis, naviculoideo- 

 conduplieatis, late et acute scarioso-earinatis, subaequalibus, tubo quam corollae 

 lobis breviore; staminodis 3, filamentosis, cum staminibus alternatis; ovarii 

 appendicibus apicalibus conspicuis integris, late obovatis, ca. 2 mm longis ; 

 capsulis 5-6 mm longis, induratis, anguste rhomboideis, appendicibus ca. 2 mm 

 longis integris acutis; seminibus suboblique oblongis ca. 1 mm longis, valde 

 costatis. 



Type : perennial herb with blue flowers, frequent, Sabana Venado, Carlo 

 Pimichm, aff. Rio Guainia, Terr. Amazonas, Venezuela, 140 m alt., Nov 23, 1953. 

 Maguire, Wurdack & Bunting 36342. 



Specimens examined: VENEZUELA: Amazonas: Yapaeana Savanna III, Maguire, Cowan 



4- Wurdack 30472; Maguire $ Wurdack 34562; Maguire, Wurdack $ Bunting 36598, 36600; 

 Sabana Venado, Maguire <$• Wurdack 35592, Maguire, Wurdack 4" Bunting 36342 (holotype 

 NY), 36382 (possibly hybrid with A. grandis). COLOMBIA: Vaupes: Cacagual, Rio Atabapo, 

 Maguire, Wurdack $ Bunting 36285. 



Distinguished from var. macrostachya by its narrow leaves. This variant, 

 in the restricted areas observed, occupies an ecologically distinct habitat, occur- 

 ring in open marshy savannas. 



Abolboda macrostachya var. robustior Steyermark, Fieldiana Bot. 28: 104. 1951. 



A. rigida Gleason, Bull. Torrey Club 56: 17. 1929. 

 A. excelsa Malme, Arkiv. Bot. 25A 12 : 16. 1933. 



Type : leaves in rosette, pungent-tipped but inrolled, coriaceous, rich green ; 

 bracts brown-lavender with scarious margins; sandy wet meadow"; on large mesa. 

 Gran Sabana northwest Kavanayen at 1220 m alt., Oct 26, 1944, Steyermark 



57349. 



Specimens examined: BRITISH GUIANA: Membaru Creek, Pinkus 223 (NY, F) ; Holi- 

 tipu (Samwarakna-tipu), Maguire 4~ Fanshaice 32521. "British Guiana," Schomburgk 1465 

 (K), type of A. rigida Gleason. VENEZUELA: Bolivar: Gran Sabana, sumpfen bei Rio 

 Cuquenan, Februari, 1910, E. Vie (K, photo NY), type of A. excelsa Malme. Auyan-tepui, Tate 

 1208; Kavanayen, Steyermark 59349 (holotype F, 2 sheets); Ptari-tepui, Steyermark 60243; 

 Auyan-tepui, Cardona 2614; Uu-tepui Maguire 33356, 33528. Terr. Amazonas: Cerro Sipapo, 

 Maguire 4 Politi 27682, 27910, 28112, 28117, 28176. 



3. Abolboda paniculata Maguire, sp. nov. Figure 2. 



Berbae perennes rhizomatibus brevibus et foliis numerosis dense rosulatis; 

 foliis linearibus planis saepe acinaciformibus scabridis, marginibus angustis 

 valde scabridis, basibus expansis sed non amplectantibus, apicibus triquetris 

 acutis mucronulatis ; scapo solitario, paniculate ramoso, 6-9 dm alto, cum 3 (vel) 

 \ jim is bracteis vaginalis subter ramo primo, 2.2-2.5 cm longis, lanceolatis acutis, 

 supra vaginis 1.0-1.2 mm longis; spicis fusiformibus 22-24 mm longis, unifloris. 



Fig. 2. a-g, Abolboda paniculata. a, habit, X ^4; b, spikelet, X 2; c, sepals, X 1%; 

 d, section in diagram, left, at base, right median, X 3; e, style, X l 1 /^, and median section; 

 f, capsule, X 2; g, seed, X 20; drawn from Cowan 4" Wurdack 31387. h-j, Abolboda ciliata. 

 a, habit, X Vi\ section of leaf -blade, X 10; seed, X 20; drawn from Maguire, Wurdack 4" 

 Bunting 37132. k-1, Abolboda bella. k, habit, X %J 1, spikelet, X 1%; drawn from Maguire 

 4 Wurdack 34514. 



