Sertum antillanum. I. 441 
striati, hornotini plus minus punctulati. Folia ochreis ad basin inserta, 
rigide coriaeea, margine plana, nervis lateralibus sub angulo 40—50° 
abeuntibus prope marginem ipsum arcuato-conjunctis, utrinque nitida, in 
sicco olivacea. 
Hab. in Haiti in Morne Bellance, 1000 m alt.: Buch no. 811. 
Obs. Verisimiliter ex affinitate praecedentis, quae nodis incrassatis, 
foliis brevius petiolatis, apice pungentibus, laxe reticulatis eorumque 
forma in statu vegetativo jam bene diversa est, 
7. Portulaca nana Urb., spec. nov. 
Planta 2—3 cm alta. Caulis carnosus ramosus, ad axillas foliorum 
pilosus, apice coma densa capsulam plus minus obtegente obsitus. Folia 
alterna, ad apicem ramorum conferta, caeterum laxiora, oblonga v. ob- 
longo-lanceolata, apice obtusa v. rotundata, 2,5—4 mm longa, 0,8— 
1,5 mm lata. Calyx usque ad rupturam 2,5 mm longus. Corolla alba 
1 mm longa; lobi 4 anguste obovati, apice subtruncati. Stamina cr. 9. 
Stylus in 2/, superiore quadrifidus. Capsula globulosa vix 2 mm dia- 
metro, in '/, alt. cireumseissa, Semina nigra 0,7 mm diametro solem- 
niter tuberculata, tuberculis elevatis 
Caules qui suppetunt 1,5 mm crassi. Folia 0,5—1 mm longe pe- 
tiolata, in sieco plana et decidua olivacea v. nigrescentia. Inflorescentia 
euphyllis 6 —8 involucrata, capitatim 1—3-flora. Calycis sepala 2 in 
!|g alt. basi connata, explanata triangularia v. ovata, apice subtruncata. 
Corollae petala basi ima coalita. Filamenta filiformia, 1,5 mm longa; 
antherae breviter ovatae. Stylus supra basin sigmoideo-tortuosus. Cap- 
Sula apice rotundata. 
Hab. in Cuba prov. Camaguey in savannis prope Camaguay in limo 
sicco, m. April. flor. et fruct.: N. L. Britton, E. G. Britton, J. P. Co- 
Well no. 13108. 
Obs. Statura nana, corolla alba 4-partita inter species antillanas 
facile recognoscenda. 
5. Magnolia domingensis Urb., spec. nov. 
Rami juniores breviter et dense villosi 
Supra angustissime v. vix sulcatis 10—15 mm longis, obovata, antice 
obtusissima v. rotundata, apice ipso plerumque leviter emarginata, basi 
acutiuscula v. acuta, 7—11 em longa, 4—7 em lata, subtus juniora bre- 
viter et molliter pubescentia, posterius glabrescentia. Fructus juniores 
Folia petiolis teretibus 
breviter ovales, carpidiis cr. 14. 
Arbor ramis divaricatis, 3.3—4 m alta. 
centes, in sicco plicato striati brunescentes laeves, hornotini pube densa 
crispula brevi sordide albida v. flavescente obtecti, internodiis 0,7— 1,2 em 
longis, Vagina stipularis usque 2,5 cm longa, dense villosula. Folia 
petiolis pube ramulorum cr. 2 mm crassis, nervo medio supra plus 
minus impresso, lateralibus utroque latere 10—12 sub angulo cr. 609 
abeuntibus utrinque prominentibus et dense retieulatis, coriacea v, erasse 
Pedunculus cr. 3 cm 
Ramuli annotini glabres- 
coriacea, margine plana v. parum recurva. 
