UMBELLIFER^. (PAKSLEY FAMILY.) 343 



tapering at base, sessile. Umbels small, nearly equally 2-3-rayed; 

 bracts of involucre oblong, 1-2, one-third to one-fourth as long as rays, 

 those of involucel 5, minute, oblong-ovate, shorter than 3-5-fLowered 

 umbellets ; fruits oblong, longer than pedicels ; riM winged ; intervals 

 3-4-vittate — September — Yokoon-Alook, near Antioch. 



A plant with somewhat the aspect of B. rigidum, L. , which is 

 readily distinguished from it by its rigid, prominently nerved, oblan- 

 ceolate, petioled, lower leaves, and 6-15-flowered umbellets. 



17. B. linearifolium, D.C. If .3 to .4, glaucescent; stems 

 erect, paniculate. Lower leaves oblanceolate-linear, .04 to .05 long, 

 tapering at base, upper linear. Umbels with 3, rarely 4-5, short, une- 

 qual rays ; bracts of involucel oblong, o-nerved, acute, shorter than 

 pedicel ; ribs filiform, rather prominent — Summer — Rocky and dry 

 places. 



Var. Schiniperianum, Boiss. Ribs little prominent. Branches 

 more spreading — Sinai. 



Var. bracteatum, Post. Bracts of involucel much longer than 

 pedicels. Ribs prominent — Gesbel-Dagh (Amanus). 



1§. B. irregulare, Boiss. et Ky. 2^ .3 to 1; stem dichoto- 

 mous, narrowly paniculate above. Root-leaves oblanceolate-linear, 

 stem-leaves few, linear. Umbels small, unequally 2-4-rayed ; bracts of 

 involucel triangular, acute, minute, shorter than pedicel ; fruits oblong- 

 elliptical, longer than pedi(iels ; ribs winged — Summer — Subalpine 

 and alpine Lebanon, Moab ? 



* * * * Leaves oblong, tapering at base, sessile, coriaceous. SliriLbby 

 perennials. 



19. B. fruticoium, L. 5 -5 to .8; branches terete, rigid. 

 Leaves .05 to .07 long, .01 broad. Umbels terminal, 6-18-rayed; bracts 

 of involucre and involucel small, reflexed, soon falling ; fruits oblong, 

 .005 long, longer than pedicel, ribs prominent, acute; vittae 1 in each 

 interval — July — Rocks ; Kesrowan. 



21. APIUM, L. Celery. Kurfus. 



Calyx-teeth obsolete. Fruit nearly globular, twin. Ribs of meri- 

 carps 5, filiform, equal, the lateral at margin. Stylopodium flattened. 

 Intervals 1-vittate. Carpophore undivided. Inner face of albumen 

 flattish — Biennial or perennial herbs, with white flowers. 



A. g:raveoleiis, L, @ Celery. Kurfui (vulgo Krefs.) .5 

 to .8, glabrous; root spindle-shaped; stem hollow, deeply grooved. 

 Leaves somewhat fleshy, the lower petioled, pinnatisect into 5, cuneate, 

 incised-lobed segments, toothed at apex. Umbels short-peduncled or 

 sessile — Spring — Marshy places and ditches ; common. 



22. HE)L.OS€lADIUM, Koch, Helosciadium. 



Calyx-teeth obsolete. Fruit ovate or oblong, flattened laterally. 

 Ribs of mericarps 5, filiform, prominent, equal, the lateral at margin, 

 Stylopodium flattened. Intervals 1-vittate, Carpophore undivided. 

 Inner face of albumen flattened — Perennial, aquatic herbs, with white 

 flowers. 



