116 L.-R. TULASNE. FLOR^ MADAGASCAR1ENS1S 



Rhamne^e R. Br., Gen. rem. on the Bot. of Terra Austr. (1814), 

 p. 22.— DC., Prodr., tom. Il (1825), p. 19. — Brongn., Dis- 

 sert, inaugur. (julio 1826), p. 43. — EndL, Gen. pi, p. 1094. 

 — Walp., Ann. Bot. Syst., tom. I, pp. 192 et 966, et tom. II, 

 p. 266. 



Rhamne^e in terris malacassiispaucge reperiri videntur ; quœ infra 

 traduntur assueta floris fabrica , nempe calyce pentamero e divi- 

 sons primitus valvatis; petalis minimis unguiculatis cochleatis sae- 

 piusque retusis aut varie emarginatis; stàminibus introrsis, sepalis 

 alternis , scil. ad petalorum radiées fauci calycinae insertis; diseo 

 crasso calycem liberum vestiente v. adnatum ovarium late super- 

 posito-cooperiente ; nec non ovulis anatropis in singulis germinis 

 locellis solitarie erectis ; ab affinibus omnibus facillime dignos- 

 cuntur. 



Schœfferiœ genus americanum quod Rhamneis dubitanter vulgo 

 annumeratur, aptius inter Celastrineas, quibuscum universa florum 

 structura (prseter fortassis eorumdem polygamiam) congruere vi- 

 detur, militabit. 



§ I. RhAMNBjE FOLIIS OPPOSITIS, OVARIO FRUCTUQUE (bACCATo) LIBERIS NEC CALYCl 



ADNATIS DONAT.E. 



I. SCCTIA. (1) Comm., in sched. mse. — Brongn. ? in Ann. se. 

 nat, ser. i, tom. X(1827), p. 362.— Endl., Gen. pi, n. 5724. 

 z=zSentis Comm., in sched. ined. == Rhamnor um spec. Candoll., 

 Prodr., tom. II, p. 30. 



8ciatia obcoi*data f Bvn., in sched. mss. = Frutex undique gla- 

 berrimus, dumosus, humilis (nempe /i-5-pedalis) , ramis exilibus, primum 

 tetragonis, decussatim oppositis, patentissimis, dense foliosis et spinis bre- 

 vibus, uncinatis, nudis, pungentibus, solitarie ex axillis sterilibus natis, 

 oppositis patentissimisque armatis. Folia opposita (decussata, rarius dis- 

 sociata), elliptica, obovata v. obovato-cordata, utplurimum enim emar- 

 ginata et costa brevissime excurrente in sinu (acuto , angnsto v. apertis- 

 simo) mucronulata, basi autem cuneata, 15 millim. circiter longa , 10-15 



(1) À scuta (wocpoJ/is), ob calycis dimidiati (circumscissi) formam. 



