ERICACEAE. (HEATH FAMILY.) 227 



• • Fruit a locuUcidal capsule, 5-celled and many-seeded. (In ours the calyx becomes 

 fleshy in fruit, enclosing the small capsules, and hence the fruit resembles a berry.) 



3. Gaultheria. Calyx 5-clcft, its lobes imbricated. Corolla ovate, urn-shaped to cam- 



panulate. Stamens 10- tilaments dilated towards the base : anthers usually awned. 

 Capsule deeply umbilicate. 



* * * Fruit a septicidal capsule : anthers destitute of awns or appendages. 

 4- Corolla gamopetalous : flowers not from scaly buds, the bracts being leaf-like or coria- 

 ceous : capsule globular. 



4. Bryanthus. Corolla from campanulato to ovoid, 4 to 6-lobed. Stamens 8 to 10, 



straight. Leaves heath-like, alternate but crowded. 

 i>. Kalmia. Corolla crateriform or saucer-shaped, 5-lobed, with 10 pouches below the 

 limb. Stamens 10: the short anthers lodged in the corolla pouches in bud, so that 

 in blooming the filaments are strongly recurved. Leaves alternate, opposite, or 

 whorled, flat. 



«- *■ Corolla polypetalous or very nearly so : flowers from large scaly buds, the scales of 

 bracts caducous : capsule oval or oblong. 



6. Ledum. Calyx 5-lobed or parted, small. Petals oval or obovate, widely spreading. 



Stamens 5 to 10. Leaves evergreen. 



Suborder III. PYROEINE.E. 



Calyx free from the ovary. Corolla polypetalous, hypogynous. 

 Anthers erect and extrorse in bud, with an einarginate or 2- horned 

 base, where each cell opeus by a pore; but inverted in anthesis so that 

 the real base with its pores becomes apical. Fruit a loculicidal capsule. 

 — Ours are herbs or nearly so, with broad evergreen leaves aud a scape 

 naked or nearly so. 



7. Moneses. Flowers solitary, 4 or 5-merous. Petals widely spreading, orbicular. Sta- 



mens 8 or 10 : anthers conspicuously 2-horned. Style straight. Valves of the capsule 

 not woolly on the edges. 



8. Pyrola. Flowers in a raceme, 5-merous. Petals concave or incurved and more or less 



converging. Stamens 10, often declined. Style often declined or turned downward. 

 Valves of the capsule cobwebby on the edges. 



Suborder IV. MOWOTROPE^E. 



Flowers nearly as in Suborders II. and III., but the plants herba- 

 ceous, root-parasitic, scaly, entirely destitute of green foliage. 



9. Pterospora. Corolla gamopetalous, 5-toothed. Anthers 2-celled, 2-awned on the 



back, opening lengthwise. 

 10. Monotropa. Corolla of 4 or 5 separate narrow petals. Anthers kidney-shaped, the 

 cells more or less confluent, opening across the top. 



1. VACCINIXJM, L. Blueberry. Bilberry. 



Ours all belong to § Euvaccinium, which has a corolla from ovate to 

 globular and more or less urn-shaped, 4 to 5-toothed, rose-color or nearly- 

 white : anthers 2-awned on the back, included : ovary and berry 4 to 5-celled, 

 with no false partitions : leaves deciduous : flowers on drooping pedicels, 

 solitary or 2 to 4 together, developing with or soon after the leaves. 



