448 SAXIFRAGACEAE (SAXIFRAGE FAMILY) 



woodlands, Ct. to N. C., w. to Minn., e. Kan., and Miss. Var. GLAUCA (Raf.) 

 Rosendahl. Stems, leaves, etc., glabrous or nearly so, often glaucous. (H. 

 glauca Raf.; II. Curtisii T. & G. ?) N. Y. to Tenn. and N. C. 



5. H. hfspida Pursh. Stems 5-12 dm. high, hispid or hirsute with long 

 spreading hairs (occasionally almost glabrous), scarcely glandular ; panicle 

 very narrow ; calyx 6-8 mm. long ; leaves rounded, slightly 5-9-lobed ; stamens 

 soon exserted, longer than the spatulate petals. Mts. of Va. and N. C. to Minn., 

 e. Kan., and north westw. May, June. 



6. H. pubescens Pursh. Stem (3-9 dm. high) and petioles granular-pu- 

 bescent or glandular above, not hairy, below often glabrous ; leaves round-reni- 

 forrn, with shallow rounded lobes ; calyx 6-8 mm. long ; stamens shorter than 

 or slightly exceeding the lobes of the calyx and the spatulate petals. (H. roseola 

 and H. longiflora Rydb.) Rich woods, in the rats., from Pa. to Ky., and 

 southw. June, July. 



7. H. hirsuticauiis (Wheelock) Rydb. Stems (5-7 dm. high) and petioles 

 hirsute with long whitish hairs; leaves reniform or suborbicular, with 7-11' 

 shallow rounded crenate-toothed lobes, white-hirsute on the veins beneath ; 

 inflorescence hirsute and glandular ; calyx about 5 mm. long ; petals greenish 

 or purplish, usually shorter than the oblong calyx-lobes ; stamens long-exserted. 

 Bluffs and rocky banks, s. Mich, and Ind. to Mo. May. 



7. MITELLA [Tourn.] L. MITERWORT. BISHOP'S CAP 



Calyx short, adherent to the base of the ovary, 5-cleft. Petals 5, slender. 

 Stamens 5 or 10, included. Styles 2, very short. Capsule short, 2-beaked, 

 1-celled, with 2 parietal or rather basal several-seeded placentae, 2-valved at the 

 summit. Seeds smooth and shining. Low and slender perennials, with round 

 heart-shaped alternate slender-petioled leaves on the rootstock or runners, and 

 naked or 2-few-leaved flowering stems. Flowers small, in a simple slender 

 raceme or spike. Fruit soon widely dehiscent. (Diminutive of mitra, a cap, 

 alluding to the form of the young pod. ) 



1. M. diphylla L. Hairy; leaves heart-shaped, acute, somewhat 3-5-lobed, 

 toothed, those on the many-flowered stem 2, opposite, nearly sessile, with inter- 

 foliar stipules ; flowers white, in a raceme (1.5-2 dm. long) ; stamens 10. Rich 

 woods, Que. and N. E. to N. C., w. to Minn., la., and Mo. May. 



2. M. prostrate Michx. Similar, but with the elongate flowering stem bear- 

 ing prominently angulate-lobed alternate leaves quite to the inflorescence. 

 L. Champlain (Michaux) ; Gaylordsville, Ct. (C. K. Averill). Very little 

 known and possibly an aberrant plant. 



3. M. nuda L. Small and slender ; leaves rounded or kidney-form, deeply 

 and doubly crenate ; stem usually leafless, few-flowered, very slender (1-1.5 dm. 

 high); flowers greenish; stamens 10. Deep moist woods, in moss, Lab. to 

 Mackenzie, s. to Ct., Pa., Mich., Minn., and Mont. May-July. 



8. CHRYSOSPLENIUM [Tourn.] L. GOLDEN SAXIFRAGE 



Calyx-lobes 4-5, blunt, yellow within. Stamens 8-10, very short, inserted on 

 a conspicuous disk. Styles 2. Capsule inversely heart-shaped or 2-lobed, flat- 

 tened, very short, 1-celled, with 2 parietal placentae, 2-valved at the top, many- 

 seeded. Low and small smooth herbs, with tender succulent leaves, and small 

 solitary or leafy-cymed flowers. (Name compounded of xpuo-6j, gold, and O-TX^J-, 

 the spleen; probably from some reputed medicinal qualities.) 



1. C. americanum Schwein. Stems slender, decumbent and forking ; leaves 

 principally opposite, roundish or somewhat heart-shaped, obscurely crenate- 

 lobed ; flowers distant, inconspicuous, nearly sessile, greenish, tinged with yel- 

 low or purple. Cold wet places, e. Que. to n. Ga., w. to Minn, and la. 



2. C. tetrandrum Fries. Stems erect; leaves alternate, reniform -cordate, 

 doubly crenate or somewhat lobed ; flowers corymbose ; stamens 4 (rarely 5-8). 

 (C. alternifolium Man. ed. 6, not L. ; C. iowense Rydb.) In wet moss, Deco- 

 rah, la. (Holway), to the Rocky Mts., and northw. (Eurasia.) 



