SKMI-EIIVIVI-M.] CRASSULACE^E. 139 



S. TECTO'RUM, L. ; perennial, glandular pubescent above, leaves ciliate. 

 Tops of walls and houses, not indigenous ; fl. June-July. Barren shoots 

 2-4 in. diam., in globose tufts, densely clothed with rosulate leaves ; 

 flowering-stems 1-2 ft., erect, stout, with the leaves scattered. Leaves 

 1-2 in., very fleshy, oblong or obovate-lanceolate, mucronate, edged with 

 purple, tips flat. Cyme 2-5 in. diam., branches scorpioid. Flo 

 if-1 in. diam., dull red-purple. Sepals 12, narrow, acute. Petals lanceol 

 ciliate. Stamens 12, perfect, with as many imperfect or transformed into 

 carpels. Scales very small. DISTRLB. Europe and W. Asia. 



ORDER XXX. DROSERA'CEJE. 



Perennial herbs, rarely shrubby below, usually very glandular, 

 radical and rosulate, or cauline and alternate, circinate in bud, stipulate. 

 Inflorescence various, often circinate cymes. Sepals 48, imbricate in 

 bud, persistent. Petals 48, hypogynous or perigynous, free or connate 

 at the base, imbricate, persistent. Stamens 4-20, inserted with the 

 petals, rarely adnate to them ; anthers versatile or basifixed, bursting 

 outwards. Disk 0, or obscure. Ovary free or adherent by a broad 

 base, 1-5-celled ; styles 1-5, simple or divided, stigmas simple or mul- 

 tifid ; ovules many, parietal, anatropous. Capsule 1 5-celled, loculici- 

 dally 3-valved, many-seeded. Seeds small, albumen fleshy, testa often 

 lax ; embryo axile, straight. DISTRIE. Sandy or marshy places ; most 

 common in temp. Australia; genera 6 ; species 110. AFFINITIES. Close 

 to Saxifrages. PROPERTIES. Yield a deep red-purple dye, and are said 

 to be acrid and poisonous. 



1. DROS'ERA, L. SUNDEW. 



Slender glandular herbs. Leaves alternate or rosulate ; stipules scarious, 

 adnate to the petiole or 0. Flowers in scorpioid racemes, rarely solitary. 

 Sc2)als and petals 4-6 or 8. Stamens as many, hypogynous or peri- 

 gynous. Ovary free, ovoid or globose, 1 -celled ; styles 2-5, free or 

 ciiiiiinte below ; ovules in many series, on 2-5-parietal placentas. Capsule 

 oblong, 2-5-valved. Seeds minute, testa lax; embryo large or small. 

 DTSTRIB. Of the Order; species 100. ETYM. tipoaepis, from the dew-like 

 glands. 



1. D. rotundifo'lia, L.; leaves horizontal orbicular or broadly obovate, 

 petiole hairy, testa loose reticulate. 



Spongy bogs and heaths ; ascending to 2,300 ft. in the Highlands ; fl. July- 

 Aug. RootstocL- slender. Stem very short. Leaves i-| in. diam. , rosulate, 

 margin glandular, nearly glabrous above ; petiole 1-1 i in., gradually dilated 

 at the sheathing base. Scapes 3-6 in., axillary ; bracts subulate ; pedicels 

 short. F lovers J- in. diam., many, in 2 series, white, usually 6-merous. 

 Petals a little longer than the sepals. Styles 2-fid, incurved, segments 

 clavate. Capmle acute, exceeding the sepals. Seeds elongate. DISTRIB. 

 Europe (Arctic), Siberia, W. Asia, E. and W. N. America, from the Arctic 

 circle to Florida. 



2. D. interme'dia, IIai/ne ; leaves erect obovate or oblong-spatliulate, 

 petiole glabrous, testa close granulate. D. longifolia, L. in part. 



