332 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



{Vol. 9, No. 3 



5. Leaves 8-12 cm long; seed ellipsoidal, ca. 0.75 mm long, scrobiculate- 



punctate. 6. Drosera cendeensis. 



4. Scapes sparsely or moderately septate-villous, not glandular, 2-8 cm long, 

 2-5-flowered; petioles densely strigose-villous beneath; blades marginally 

 strigose, otherwise glabrous beneath; seed ovoid-subglobose, (0.3) 

 0.4—0.5 mm long, apiculate, foveolate in 12-16 (18) vertical lines. 



7. Drosera kaieteurensis. 

 3. Scapes glabrous or essentially so, or inconspicuously very sparingly glandular- 

 puberulent. 

 8. Calyx 3-5 mm long. 



9. Leaf-blades broadly spathulate or obovate; scapes 2-5, filiform, glabrous, 

 1-3 cm long, 2-3-flowered; sepals oblong, obtuse at the apex; seed 

 0.3-0.4 mm long, oblong-subglobose, finely foveolate. 8. Drosera pusilla. 



9. Leaf-blades oblanceolate or narrowly spathulate; scapes neither capillary 

 nor filiform. 



10. Leaves 3-4 cm long, the petioles 3 to 4 times exceeding the blades; 

 scapes 8-15 cm long; seed 0.7-0.9 mm long, oblong, densely and 

 irregularly muricate-papillate. 9. Drosera intermedia. 



10. Leaves 1-2 cm long; the petioles subequal or less than twice longer 

 than the blades; scapes usually 2-3, angular-compressed, 10-25 cm 

 long, subglabrous; calyx ca. 3 mm long, the sepals lanceolate-oblong, 

 acute, externally sparsely glandular-puberulent; seed scrobiform- 

 fusiform, reticulate. 10. Drosera communis. 



8. Calyx 2.0-2.5 mm long. 



11. Stipules adnate for 0.5-0.6 mm, dissected to the base in 5—6 acicular 

 segments; scapes usually solitary, capillary; calyx minutely glandular- 

 puberulent; seed shining black, 0.3-0.4 mm long, narrowly oblong- 

 elliptic, biapiculate, foveolate in ca. 10 vertical rows. 



11. Drosera esmeraldae, 

 11. Stipules free to the base or adnate for 0.1-0.3 mm, irregularly dissected 

 into lanceolate segments for 2/3 their length; scapes more often 2-3, 

 (ours) capillary; calyx glabrous; seed brownish, ca. 0.4 mm long, 

 ellipsoid-subglobose, costulate-papillose in 14-16 vertical ridges. 



12. Drosera capillaris. 



Meristocaulis Maguire & Wurdack, sect. nov. 



Styli 3, integri ad apices ramiformi-penicillati; caulibus paucifurcatis; 

 stipulis conspicuis; scapis defectis; floribus solitariis, brevipedicellatis; semini- 

 bus oblongis foveolatis. Monotypica. 



TYPE species: Drosera meristocaulis Maguire & Wurdack. 



Meristos (,U.ep lOTOC) ■, divided; caulos ( XDClAoC), stem. 

 1. Drosera meristocaulis Maguire & Wurdack, sp. nov. 



Caules 5-15 cm longi ad apices pauciramosi, fastigiati, foliis demum marce- 

 scesrtibus; foliis confertis ascendentibus, demum abrupte reflexis; stipulis scariosis 

 adnatis ad basis, 2-carinatis 8-10 mm longis, 3-partitis, segmentis fimbriate 

 laceratis; petiolis glabris, 6-8 mm longis teretibus aliquantum sursum compressis; 

 laminis anguste oblanceolatis 4-5 cm longis, 8-12 mm latis, subtus glabris; 

 escaposa; floribus solitariis vel aliquando 2-3, axillaribus, subterminalibus; 

 pedicellis 3-4 mm longis, glabris, cum una spla angusta bracteola 2-4 mm longa; 

 sepalis 5, elliptico-oblongis 4-5 mm longis, 1.5 mm latis, obtusiusculis externe 

 exigue albo-pustulatis; hypanthio ca. 1 mm longo; petalis oblanceolatis, ca. 10 

 mm longis; staminibus 5; filamentis planis fragilibus ca. 4 mm longis, 3 mm latis; 

 antheris oblongis 4-lobatis, 2-locularibus, ca. 0.8 mm longis; ovariis 3-locularibus; 

 stylis 3, simplicibus, ad apicem ramis penicellatis; capsulis 1.5-1.8 mm longis, 

 obovato-subglobosis, 3-lobatis; seminibus nigris oblongis 0.6-0.8 (1.0 non sicco) 

 mm longis, minute foveolatis in 16-18 lineis verticalibus. 



TYPE: fastigiate perennial herb with conspicuous silvery stipules, narrow 

 leaves and sessile white flowers; locally frequent on boggy open cumbre savanna, 



