Gooseberry Family. 53 



r\. arborescens L. Wild Hydrangea. A shrub, 4-10 feet high, with ovate 

 pointed serrate leaves, and mostly fertile flowers in cymes. Reported from 

 Lee county. 



GROSSULARIACEAE Dumort. Gooseberry Family. 



Low shrubs, with alternate palmately-lobed single or clustered leaves, 

 and solitary or racemose flowers. Calyx 5-lobed, adherent to the ovary, 

 withering persistent. Petals 5, small. Stamens 5, alternate with the 

 petals, inserted with the petals on the top of the calyx-tube. Styles 2, 

 distinct or united. Ovary 1-celled, with 2-parietal placentae. Fruit a 

 berry. Represented by the genus Ribes L. 



* Peduncles axillary, solitary, 1-3-flowered. 



Pv gracile Mx. Common WUd Gooseberry. Stems recurved, often with long- 

 and stout red thorns: leaves rounded: lobed and incised: flowers whitish; 

 calyx-tube short and narrow: calyx-lobes oblong-linear, filaments slender, 

 connivent or parallel, much exserted; berry smooth. Woods: May: common. 



P^. cynosbati L. Prickly G. Leaves similar to the preceding-, pubescent: 

 calyx campanulate. tube longer than the lobes, stamens and style not ex- 

 serted. styles united; berry armed with long* spines. Woods; May: frequent; 

 'Winneshiek, Clayton, Dubuque: Fayette, Delaware. Scott, Muscatine, Henry, 

 Johnson. Story. Dallas. Webster, and Cerro Gordo counties. 



R. oxyacanthoides L. Flowers greenish or purplish, peduncles short; 

 stamens not exceeding the oblong calyx-lobes. Hillsides; April-May; re- 

 ported as frequent from Delaware and Henry counties. 

 * * Flutters in drooping racemes. 



Pv floridum LHer. Wild Block Currant. Stems without thorns or 

 prickles: leaves heart-shaped. 3-5-lobed. toothed: flowers large, whitish; 

 bracts longer than the pedicels; stamens and style short: berry smooth, 

 black. Woods: May: frequent: Winneshiek, Allamakee, Clayton. Delaware, 

 Scott. Muscatine. Fayette, Johnson. Emmett. Story, Winnebago, Floyd, Cerro 

 Gordo. Lyon, Woodbury, and Taylor counties. 



Pv rubrum L. Red Currant. Fruit globose, red. This species is the com- 

 mon garden currant, occasionally an escape. 



Pv. aureum Pursh. Gulden, Buffalo, or Missouri Currant. Shrub 5-12 feet 

 high, with 3-o-lobed, leaves, and showy golden-yellow flowers in short 

 racemes. Frequent in cultivation, occasionally spontaneous: April-May. 



CRASSULACEAE DC. Orpine Family. 

 Herbs with cymose flowers. Sepals and pistals of the same number. 

 Petals as many as the sepals or wanting. Stamens twice as many as the 

 sepals. Fruit capsular, dehiscent. 



Penthorl.m. Plants not succulent : carpels united. 

 Sedl-.m. Plants very succulent : carpels distinct. 



PENTHORUM L. Perennials, with leafy stems, and yellowish green 

 apetalous flowers. Sepals and pistils ~>. Stamens 10. Fruit of 5 one-celled 

 carpels, united at the base, each horned above. Seeds small, many. 



P. sedoides L. Ditch Stonecrop. Stem 1-3 feet high; leaves scattered, 

 sessile, lanceolate, tapering both ways, serrate. Common in wet soil: July- 

 September. 



SEDUM L Leaves thick, succulent, sepals, petals, and pistils 4-5. 

 Stamens 8-10. Carpels distinct, many-seeded. 



S. telephium L. Orpine. Live-fo i < A glabrous somewhat glaucous 



