1952] 



PLANTS COLLECTED IN ECUADOR 



45 



Cutucu) approach it in their comparatively large ovate leaves. The value of S. 

 majus as a specific entity at any rate is open to question, and I think it advisable 

 to refer all the small-leaved Ecuadorian specimens with 4 or 5 stamens to 5". 

 buxifolium. 



Sphyros perm urn flaviflorum A. C. Smith, sp. nov. 



Frutex epiphyticus, ramulis gracilibus teretibus cinereis ad nodos incrassatis 

 juventute - albido-puberulis mox glabratis; foliis congestis, petiolis subteretibus 

 1-2 mm. longis ut ramulis mox glabratis; laminis in sicco coriaceis fusco-olivaceis 

 ellipticis, 15-22 mm. longis, 10-15 mm. latis, basi et apice rotundatis, margine 

 incrassatis paullo recurvatis, subtus minutissime et subpersistenter albido- 

 puberulis ac etiam dispersim glanduloso-strigillosis (pilis castaneis circiter 0.2 

 mm. longis caducis), e basi obscure 3- vel 5-nerviis, costa supra leviter impressa 

 subtus elevata, nervis lateralibus obscuris; floribus axillaribus solitariis basi 

 bracteis pluribus minutis imbricatis suffultis, rhachi subnulla; pedicellis gracili- 

 bus 2.5-3.5 mm. longis pilis 0.3-0.6 mm. longis albido-hispidulis basi minute 

 bibracteolatis cum calyce continuis; calyce sub anthesi 3.5-4 mm. longo et apice 

 diametro ut pedicellis hispidulo, tubo cupuliformi circiter 2 mm. longo, limbo 

 erecto-patente profunde 5-lobato, lobis elongato-deltoideis circiter 1.5 mm. longis 

 acutis intus glabris, sinibus obtusis vel rotundatis; disco annul ari-pulvinato glabro; 

 corolla subcarnosa extus parce hispidula campanulata, sub anthesi circiter 5.5 

 mm. longa et apice 4 mm. diametro, lobis 5 late deltoideis circiter 0.5 mm. longis 

 subacutis; staminibus 10 alternatim leviter inaequalibus quam corolla brevioribus, 

 filamentis gracilibus ligulatis glabris circiter 1.5 mm. longis, antheris 2.7-3 mm. 

 longis, thecis 1-1.2 mm. longis, tubulis longioribus per poros subterminales cir- 

 citer 0.2 .mm. longos dehiscentibus; stylo filiformi corollam subaequante, stig- 

 mate minuto. 



Canar: Valley of Rfo de Canar, near Rosario, 3,400 ft. elev., Sept. 6-10, 

 1944, F. Prieto CP-16 (TYPE US 1,988,906; dupl. NY) (epiphyte; leaves succu- 

 lent; corolla yellowish, tinged with pink if exposed to sun). 



Sphyrospermum flaviflorum belongs to a small group of Ecuadorian species not 

 discussed in my revision of 1933, but treated in Sleumer's more recent key (Bot. 

 Jahrb. 71: 394, 395. 1941). The two species thus far comprising the group are 

 characterized by having stamens twice as many as corolla-lobes, very short pedicels, 

 small flowers, and anthers with slender tubules dehiscing by subterminal pores. 

 The new species differs from S. spruceanum Sleumer in its larger and obscurely 

 pilose leaves and its obviously pedicellate flowers, which are larger in all parts. 

 From the related 5. micro phyllum Sleumer, it is distinguished by its much larger 

 leaves and flowers, its comparatively conspicuous calyx-lobes, and its campan- 

 ulate (rather than apically contracted) corollas. 



Sphyrospermum campii A. C. Smith, sp. nov. 



Frutex epiphyticus vel terrestris, ramulis gracillimis brunneis minute et subper- 

 sistenter pallido-puberulis; petiolis gracilibus teretibus 1-2 mm. longis ut ramulis 

 puberulis; laminis in sicco subcoriaceis fuscis ovatis, 15-26 mm. longis, 10-15 

 mm. latis, basi late obtusis vel subrotundatis, apice subacutis, margine leviter 

 recurvatis, subtus evanescenter puberulis ac etiam dispersim glanduloso-strigillo- 

 sis, e basi obscure 3- vel 5-nerviis, costa supra plana vel paullo impressa subtus 

 subelevata, nervis aliis immersis; floribus axillaribus solitariis; pedicellis graci- 

 libus sub anthesi 1.5-2 mm. longis parce puberulis cum calyce continuis basi 

 bracteis paucis minutis suffultis, basim versus bibracteolatis, bracteolis reniformi- 

 orbiculatis haud 1 mm. latis; calyce sub anthesi circiter 3 mm. longo et apice 

 diametro pilis pallidis 0.3-0.5 mm. longis copiose hispidulo etiam obscure castaneo- 

 glanduloso, tubo subgloboso circiter 1.5 mm. longo, limbo papyraceo suberecto 



