SUNDEW FAMILY 373 



Petals as many, convolute. Stamens 5-8, mostly 5. Gynoecium of 2-5 

 united carpels; ovary 1-celled, with 2-5 parietal placentae, rarely 2-3-celled, 

 loculicidally 2-5-valved. 



1. DROSERA L. SUNDEW. 



Perennials, in ours scapose, with basal leaves. Sepals, petals, and stamens 

 4-8. Petals white or pink, spatulate or oblanceolate. Filaments subulate or 

 filiform; anthers extrorse. Ovary 1-celled, superior; styles 2-5, distinct. Cap- 

 sule 2-5-valved. 



Leaf-blades suborbicular or broader than long. 1. D. rotundifolia. 

 Leaf-blades elongate. 



Leaf-blades spatulate or oblanceolate; seeds smooth. 2. D. longifolia. 



Leaf-blades linear or linear-oblanceolate ; seeds muricate. 3. D. linearis. 



1. D. rotundifolia L. Rosulate perennial; leaf-blades 6-10 mm. wide; 

 scape glabrous, 1-3 dm. high; raceme secund; calyx about 3 mm. long; lobes 

 ovate-oblong; petals about 4 mm. long, white; capsule erect, about 5 mm. long; 

 seeds smooth. Sphagnum bogs: Lab. N.J. Ida. Calif. Alaska; Eurasia. 

 Boreal Mont. Je-S. 



2. D. longifolia L. Rosulate perennial; leaf-blades spatulate or oblance- 

 olate, 1.5-3 cm. long, about 4-5 mm. wide; scape 1-3 dm. high; calyx about 4 

 mm. long; lobes oblong; petals white, 5 mm. long; pods 7-8 mm. long. D. anglica 

 Huds. Bogs: Newf. Ont. Ida. Calif. B.C.; Eurasia. Boreal Mont. My-Au. 



3. D. linearis Goldie. Rosulate perennial: leaf-blades linear or narrowly 

 linear-oblanceolate, 1.5-4 cm. long, 2-3 mm. wide; scape 3-10 cm. high, 1-4- 

 flowered; calyx 3-4 mm. long, lobes ovate; petals white, 5-6 mm. long; capsule 

 5-6 mm. long. Bogs: Que. -Mich. Alta. Boreal. Jl-Au. 



FAMILY 55. CRASSULACEAE. STONE-CROP FAMILY. 



Herbs or rarely shrubby plants, mostly fleshy or succulent, without 

 stipules. Flowers mostly cymose, perfect, regular. Calyx persistent; 

 sepals 4 or 5, usually free, rarely united. Petals 4 or 5, free or more or less 

 united, rarely wanting. Stamens as many or twice as many as the petals. 

 Pistils as many as the sepals, distinct or united at the base. Fruit of folli- 

 cles, dehiscent on their ventral suture. 



Stamens twice as many as the sepals. 



Flowers axillary, arranged in elongate racemes or spikes; petals rose-colored, distinct. 



1. CLEMENTSIA. 

 Flowers terminal, in cymes or one-side racemes. 



Petals more or less united, erect; corolla tubular. 2. GORMANIA. 



Petals distinct. 



Flowers polygamous or dioecious; carpels erect; petals in ours purplish. 



3. RHODIOLA. 



Flowers perfect ; carpels spreading ; petals in ours yellow. 4. SEDUM. 

 Stamens as many as the sepals ; minute annual mud or water plants. 5. TILLAEASTRUM. 



1. CLEMENTSIA Rose. RED ORPINE. 



Perennial herbs, with elongate rootstocks. Stem-leaves numerous. Flowers 

 in dense spikes or racemes. Sepals distinct, linear or linear-lanceolate. Petals 

 distinct, rose-colored. Stamens 10, the 5 opposite to the petals adnate to them 

 up to the middle. Carpels 5, erect. 



1. C. rhodantha (A. Gray) Rose. Stems several from the thick rootstock, 

 simple, 1.5-3.5 dm. high; leaves linear-oblong or oblanceolate, sessile, 1.5-3 cm. 

 long, entire or few-toothed; raceme very dense, 2-6 cm. long; petals linear- 

 lanceolate, twice as long as the sepals. Sedum rhodanthum A. Gray. Mountain 

 meadows: Mont. N.M. Ariz. Mont. Alp. Je-Au. 



2. GORMANIA Britton. 



Perennial herbs, with horizontal rootstocks. Leaves spatulate, obovate, or 

 orbicular, the basal ones numerous, the cauline ones similar but smaller. Flow- 



