510 



PLUMB AGINEiE (LEAD WORT FAMILY.) 



half its length, lower and inner aspect sparingly papillose ; ovary- 

 glabrous — May — 



Var. bracliycarpu-m, Boiss. Leaves smaller, . 08 to. 1 long, 

 oblong. Capsules shorter — Sandstone ; middle and subalpine zones of 

 Lebanon, 1000 to 3000 m. 



DIVISION IV. COROLLIFLOR/E. 

 Sepals more or less united. Petals usually united, se- 

 parate from calyx at base. Stamens usually adnate to corolla. 

 Ovary usually free. 



Order LX. PL-UHIBAOIBiEtE, Endl. (Leadwort Family). 



Herhs or slirubs^witJi regular, pei'fcct, ^-meroiis fioioers, 

 a gamosejmlous, tubular or funnel-shaped calyx, wWi plicate, 

 scarious Ihnb, (in Plumbago herbaceous) and five stamens 

 oioposite the corolla-lobes or clawed petals, and a free, sessile, 

 \-celled ovary, with one ovule pendulous by a cord arising 

 from the base of the cell — Styles 5, free, or united at base, 

 to middle, or to apex ; stigmas filiform or capitate. Fruit a 

 utricle, included in calyx, membranous, indehiscent, or de- 

 hiscent by a lid or' irregular valves. Seeds inverted, albu- 

 minous — An order standing apart, allied by some of its 

 characteristics to Primulace^, and by others to Plantaginacese. 



* Styles free from hose, or above. Fruit rupturing at base or opening by a lid. 

 f Erinaceous, subalpine or alpine shrubs, with awl-shaped or needle-like, prickly leaves. 



1. AGANTIIOLIMOX. Calyx 5-nerved. Styles glabrous. Stigmas capitate. 



X t Shrubs or herbs, not erinaceous, and, for the most part, not high mountain plants. Petals 



free almost to base, or united to limb. 



X Inflorescence racemed-spiked. 



2. GONIOLIMON. Calyx 5-nerved. Styles papillose. Stigmas capitate. 



3. STATICE. Calyx 5-nerved. Styles glabrous. Stigmas filiform. 



4. LIMONIASTRU.M. Calyx nerveless. Styles glabrous. Stigmas filiform. Corolla gamopet- 



alous to throat. 



X X Inflorescence capitate-globular. 



5. ARMERIxV. Calyx 10-nerved, spurred at base. Styles bearded below. Stigmas filiform. 



* * Styles connate to tip. Fruit dehiscent by valves at base. 



6. PLUMBAGO. Calyx herbaceous. Corolla hypocrateriform, with 5-parted limb. 



1. ACAXTHOLIHON, Boiss. Acantholimon. 



Calyx funnel-shaped, with slender tube, and scarious, 5-nerved, 

 o-10-lobed limb. Petals 5, connate at base, long-clawed. Filaments 

 5, free, glabrous. Ovary linear-cylindrical, tapering into 5, glabrous 

 styles coherent at base. Stigmas capitate. Utricle crustaceous-mem- 

 branous, indehiscent, or splitting at angles — Erinaceous, high moun- 

 tain shrubs, with needle-like or subulate leaves, and (in ours) spike-like 

 racemes of showy flowers, (in ours) arranged in 1-flowered and 3- 

 bracted spikelets. 



