

26 botanical gazette. [ February * 



{ara^eous, anisophyllous : leaves glabrate, chartaceous, 5- 

 nerved ; the larger oval, caudate-acuminate, minutely cor- 

 date, 5 or 6 inches long, half as broad ; the smaller ovate- 

 lanceolate, 10-15 lines long: peduncles geminate or soli- 

 tary, 1^—2 inches long, sub-equalling internodes : bracts 

 1 -nerved ; the exterior ovate-lanceolate, shorter than flowers, 

 twice exxeeding the obovate interior : calyx-limb nan ow, sin- 

 uate : petals obovate-spatulate, nearly an inch long, roseate: 

 anthers laterally connate, oblong, connective slender for the 

 genus, its acutely conical spur a line long : style arcuate, elon- 

 gate (8 lines), stigma capitellate : berry ribbed, 6-celled. 

 Pansamala, alt. 3800 feet, Sept., 1886 (Ex PL cit. 778). 

 B. gracilis Hemsl., with nearly similar involucre, flower 

 and fruit, is isophylJous, leaves acute at base, solitary pe- 

 duncles several times exceeding internodes, bracts 3-nerved, 

 anthers free and inappendiculate. 



Explanation of Plate VI: Fig. 1. Flowering branch, 

 nat. size. Fig. 2. Vertical section of flower. Fig. 3. Flower 

 deprived of petals and stamens, enlarged. Fig. 4. Stamen, 

 enlarged. Fig, 5. Diagram of flower. 



Clibadium arboreum. — Tomentose: leaves scabrid 

 above, hairy beneath, tripli nerved, appressed - serrulate, 

 ovate-acuminate, 5-7 inches long, base narrowed to nearly 

 half as^ long as petiole: corymb large, flat, dense: heads 

 subsessile, bracts ovate-oblong : involucre 3 lines high ; 

 bracts 9-10, pubescent, ciliate, Arm, strongly nerved, obtuse ; 

 disk epaleaceous : fertile flowers 5, uniseriate ; achenia large 

 (U lines long), thick, winged below apex, black, shining : 

 sterile flowers 10-11; corolla exsert, i| lines long, lobes 

 puberulous ; abortive achenia equaling the perfect, like them 

 naked except glandular-pubescent apex. — Pansamala, alt. 

 3,800 feet, June, 1886, (Ex PI. cit. 929).— Remarkable by 

 arboreous habit, as stated by Mr. von Turckheim. Other 

 Central-American species, all suftruticose, the first nearly 

 allied, may be distinguished as follows: 



C SuHnamense L , var. a*perum Baker. Petioles short, leaves rounded 

 at baee : heads smaller ; involucral bracts 6-8, acute; pilets 2-3, linear : 

 achenia small, short obovate, dull- pale, upper half villus©; corolla lobes 

 of sterile ii >wers conspicuously villose; abortive achenia hidden by 

 shaggy hairs. 



C. lewcarpwm Steetz. PettoleR very short, leaves narrowly ovate- 

 lanceolate: heads small ; involucral bracts glabrous, long-ciliat©, bi-form, 



acutish: achenia broad, thick, black, apex naked and tubercuiate. 



('. acuminatum Benth. Petioles long : fertile flayers bi-seriate; ster- 

 ile fewer (3-4), subsessile by short abortive achenia. 



