82 PEN.EACE.^ (Stei3liens). 



very short, white, swollen ; raphe filiform, extrorse, coloured ; 

 funicle and raphe separable from the seed; embryo conic-ovoid, 

 with the massive hypocotyl terminated towards the hilum by the 

 truncate concave radicle, and towards the chalaza by 2 very minute 

 cotyledons. 



Small shrubs or imderalirubs of an ericoid habit ; leaves decusi^ate, often 

 imbricate, entirCj coriaceous, feather-veined, flat or rarely ericoid or partially 

 revolute, sessile or very shortly petiolate ; btipules when present minute, awl-like 

 or auriculate or sometimes glandular ; setse or minute scales often present in the 

 axils of the leaves ; flowers sessile or on very short pedicels, solitary or in much 

 reduced racemes, lateral or approximated at the ends of the branches ; bracts 

 leaf-like, or differing from the leaves in colour and form ; bracteoles opposite, ni 

 one or more pairSj soiuetimes very caducous.- 



DiSTBiB. Genera 5, species 21, endemic in the coast region of South Africa. 



Tribe I. PEX.E^E. — Ovules 2 or 4 in each cell, basal, erect (in Brachysiphon 



vupestris occasionally 2 erect and 2 pendulous in each cell). 



I, Penaea. — Perianth-tube subequal to the limb ur twice aa long; lobea 



erectj valvate in bud, Stt/le 4-winged or 4-angled, rarely cylindrical, 

 topped by 4 cruciform lobes ; stigmatic surfaces 4, minute, cushion- 

 like, in the angles between lobes of the style just below Its apex, 



II. Brachysiphon. — Perianth-tule subei^ual to the limb or nearly twice as 



long ; lobes erect, or reflexed only in the faded flower, reduplicate- 

 valvate in bud. Style filiform, terete or cylindrical ; stigma small, j 

 capitate, obscurely 4-lobed. 



III. SsLVCocol\B..—P€r!anth-tuhe about 3 times as long as the limb ; lobes 



reflexed on opening, reduplicate-valvate in bud. Stujncns exserted. 

 Style filiform, terete ; stigma capitate, obscurely 4-lobed. 



Tribe IL EXDOXEME.E,— OywZf^ 4 in each cell, inserted half-way down on an 



axile placenta, 2 erect and 2 pendulous. 



IV. Grlisclirocolla.— i^^oit-cr^ approximated at the tips of the branches. 



Perianth-tube about 3 times as long as the limb. Filaments erect, 

 very short. 



V, Endonema. — Flowers lateral. Periaullt-tabe about 4 times as long a^ 



the limb. Filaments folded in bud, becoming erect as the flower 

 opens, subulate above the fold, ligulate below. 



I. PEN^A, Linn. 



Ferianthtiibe cylindrical or ovate-cyliudric, twice as loug as the 

 limb or subequal to it, subequal to the bracts ; lobes erect, valVate 

 in bud. Stamens shorter than the periauth-lubes ; filaments very 

 short, flattened; anthers with thick llcsliy 24obed connective, 

 bearing a small obliquely -placed cell on the inner side of each lobe 

 near the base ; margin of the valves fimbriate. Ocary and f^fi/^'' '^^^ 

 long as the perianth; ot7ary 4-angled; glabrous or minutely scabrou;5j 

 ovules 2 or 4 in each cell, basal erect; style usually with 4 longi- 

 tudinal membranous wings or 4 angled, easily separable into 4 parts, 

 wings or angles alternating with the cells and topped by 4 fla* 

 oblong lobes, arranged in a crucifoiTO manner (stigmata of other 

 authors) ; or style terete, with 4 longitudinal ridges at the base aii^ 



