478 LXXXV. DIAPENSIACE.E. (C. B. Clarke.) [Diapensia. 



ORDER LXXXV. DIAPENSZACEJE. (By C. B. Clarke.) 



Very small, prostrate shrubs. Leaves alternate or crowded, entire or toothed. 

 Flowers solitary or racemose. Calyx 5-partite, persistent ; segments imbricate. 

 Corolla hypogynous ; lobes 5, imbricate. Stamens 5, on the throat of the 

 corolla, alternate with its lobes ; anthers dehiscing by slits. Disc 0. Ovary 

 free, globose, 3-celled ; style cylindric, stigma shortly 3-lobed ; ovules few or 

 many in the inner angles of the cells. . Capsule coriaceous, 3-celled, loculicidally 

 3-valved. Seeds many, minute, albuminous. Species 8, in N. America, Europe, 

 Japan, and the Eastern Himalaya. 



1. DI A PENS! A, Linn. 



Very small, glabrous shrubs. Leaves crowded, obovate-oblong, entire, coria- 

 ceous. Flowers at the ends of the branches, solitary, peduncled, white or rose- 

 red. Calyx 2-3-bracteate ; sepals broadly ovate, obtuse. Corolla campanula! e, 

 persistent ; lobes spreading, round. Anthers subsessile, cells oblique ; stami- 

 nodes 0. Seeds very many, minute, subcubic ; testa lax. 



D. himalaica, H. f. 8r T. in Hook. Kew Journ. ix. 372, t. 12; leaves 

 subacute, flowers subsessile, tube of the corolla twice as long as the calyx, 

 fruiting peduncle 1-3 in. 



SIKKIM HIMALAYA ; alt. 10-14,000 ft., Lachen and Chola Pass, J. D. H., &c. 

 Densely tufted. Leaves in. Sepals in flower-time - in., ovate ; in fruit 

 nearly | in., obovate-oblong. Corolla-tube | in., lobes in. Capsule - in. diam. 



ORDER LXXXVI. FIiI72&BAaiNE2. (By C. B. Clarke.) 



Herbs or undershrubs. Flowers in terminal scapes or peduncles, capitate, 

 racemed or pauicled ; bracts often scarious on the margins, usually sheathing 

 the flower ; bracteoles 2. Calyx inferior, tubular, 5-10-ribbed, often hyaline 

 between the ribs, mouth frequently funnel-shaped, scarious. Petals 5, free or 

 connate at the base into a very short tube with the filaments, rarely united into 

 a linear tube, spreading. Stamens 5, opposite the petals ; filaments nearly free or 

 adnate below to the corolla ; anthers oblong. Hypogynous disc 0. Ovary superior, 

 1-celled, 5-angular above; styles 5, distinct from the base or connate below, 

 stigmas subcapitate ; ovule 1, pendulous from a basal ascending funicle, ana- 

 tropal. Capsule membranous or the apex hardened, included in the calyx (in 

 JEgialitis linear, long-exsert), circumsciss or rupturing near the thin base, the 

 hardened apex often 5-valved. Seeds cylindric (in AZgialitis elongate), pendu- 

 lous; albumen various or 0; radicle superior. Species 200, throughout the 

 world, mostly in maritime or saline places. 



TRIBE I. Static etc. Styles 5, distinct; stigmas subcapitate. Stamens 

 very shortlv united at the base into a tube with the corolla. 



Large shrub, with broad petioled leaves , 1. ^EGIAXITIS. 



Herbs or small shrubs, with linear prickly leaves 2. ACA.NTHOLIMON. 



Herbs or small shrubs, with obovate leaves 3. STATICB. 



TRIBE II. Plumbag-eae. Style 1, filiform, divided into 5 stigmatose 

 branches. 



Calyx glandular, stamens free, flowers spicate 4. PLUMBAGO. 



Calyx eglandular, stamens adnate to the middle of the corolla- 

 tube, flowers capitate 5. CERATOSTIGMA. 



Calyx eglandular, 5-winged, stamens free, flowers spicate ... 6. VOOELIA. 



