818 AEOIDE^. (ARUM FAMILY.) 



Peduncle somewhat shorter than petioles; tube of spathc oblong, 

 usually pale within, lamina four times as long, oblong-lanceolate, 

 acuminate, purplish with deeper Irown-imrple or UacMsh, ovate spots; 

 appendix of spadix somewhat shorter than spathe, blackish-violet, 

 cylindrical to club-shaped, more or less stipitate; pistillate inflorescence 

 twice as long as staminate; abortive stamens above the former few, 

 above the latter numerous, purplish, setaceous from a warty base — 

 Spring — Common in fields, roadsides, and waste places. 



2. A. detruncatuiii, C. A. M. 21 Petioles much shorter than 

 lamina; lamina .2 to .25 long, oblong, obiMZQ^hd^sQ horizontally truncate, 

 oUoletely cordate. Peduncles shorter than petioles; spathe .18 to .23 

 long, with ovate-oblong tube, one-third as long as lanceolate-acuminate 

 lamina; appendix of spadix club-shaped, a little shorter than spathe; 

 pistillate inflorescence twice as long as staminate; abortive stamens 

 above both kinds of flowers setaceous, from longitudinal areola} sepa- 

 rated by deep grooves — Spring. 



Var. €oiioplialloicle§, Boiss. Leaves triangular, more cordate 

 at base; spathe green, reddish-margined; appendix of spadix violet 

 lead color — Cedars of Lebanon. 



3. A. Palee§lmtiiii, Boiss. 21 Petioles thrice as long as lamina, 

 .3 to A long, sheathing nearly to middle; leaves ovate to oblong, 

 hastate-sagittate, lobes ovate, oUuse. Peduncle as long as petioles; 

 spathe .10 to .18 long, green outside, UacHsTi-purple, not spotted msidiQ, 

 tube campanulate, lamina oblong-lanceolate, obtuse, rarely acuminate; 

 appendix of spadix blackish-purple, somev/^hat shorter than spathe, 

 cylindrical, scarcely club-shaped; pistillate and staminate inflorescence 

 nearly equal in length; abortive stamens numerous in interspace and 

 above stamens, setaceous -— Spring — Shady places; hill country of 

 Palestine ; Moab. Sweet smelling. 



4. A. laygTOpMltini, Boiss. 2X Petioles thrice as long as lamina, 

 sheathing for their lower third; lamina hastate, lobes lanceolate, 

 eroded at margin. Peduncle somewhat shorter than petiole; spathe .1 

 long, .02 broad, green, purple-margined, or purplish within, tube 

 oblong, one-third as long as lanceolate, acuminate lamina ; appendix of 

 spathe cylindrical, two-thirds as long as lamina; abortive stamens few 

 between rings, those above stamens separated from them by a short 

 space, setaceous, deflexed, purple — April and May — By water; 

 common. 



Var. rupicola, Boiss. Peduncle somewhat longer than petioles. 

 Leaves oblong, cordate, auricles shorter and broader, oblong-triangular, 

 obtuse — Above Zebedani. 



5. A. ©rlcntale, M. B. 21 Petioles thrice to four times as long 

 as lamina; lamina often Ijlaclc-spotted, hastate-sagittate, lobes ovate- 

 triangular, rather obtuse. Peduncle longer than petiole ; spathe with 

 an oblong tube, half to one-third as long as more or less intensely piurple 

 or llacTc lamina; spadix half ns long as spathe, the stalk dilated into a 

 chii-shajjed, purple appendix, longer than itself; ring of pistillate 

 flowers twice to thrice as long as staminate ; sterile stamens few, above 

 and below fertile, setaceous — Spring. 



Var. gratuiii, Engl. Sweet smelling. Appendix twice as long as 

 stalk of spadix —Northern Syria; alpine Lebanon. 



