70 GEBANIACE.E. 



the stems and growing parts: leaves 2 in. broad, 5-parted, the segments 

 obtusely and not deeply 3-lobed: petals 2 lines long, obtuse, purple, 

 equalling trie aristate sepals: carpels slightly hairy: seeds oblong, min- 

 utely striate-reticulate. — San Francisco and Alameda. Native of New 

 Zealand. 



2. ERODIUM, L'Her. (Stobksbill). Vegetative characters of Ger- 

 anium, but leaves otten pinnate. Flowers and fruit almost the same; 

 but fertile stamens 5 only, as many scale-like sterile filaments alternating 

 with them. Beak of ripe carpel silvery-bearded within, and spirally 

 twisted. 



* Naturalized species; leaves pinnate. 



1. E. cicuTARir/M (L.), L'Her. Leaves chiefly radical, in a depressed 

 rosulate tuft, usually 6 — 10 in. long, the many leaflets laciniately pinnali- 

 fid with narrow acute lobes; cauline leaves reduced: peduncels exceeding 

 them and bearing an umbel of 4 — 8 small bright bright purple flowers: 

 beak of carpels 1 — 2 in. long. — Frequent in the Bay region; perhaps 

 more common in the interior and southward. This is one of the pasture 

 plants commonly called Pin-clover and Alfilerilla; but the next is the 

 important one. 



2. E. moschatcjm (L.), L'Her. Coarser and larger, the radical leaves 

 ascending, 1 ft. long or more; cauline more ample; leaflets unequally and 

 doubly serrate: corolla pale and rather dull purple or rose-color: herbage 

 with a delicate musky odor.— The prevalent Pin-clover of middle Calif. 



3. E. Botbts, Bertol. Radical leaves rosulate, closely depressed, 

 shining above, of oblong obtuse outline, the segments coarsely dentate: 

 stems short: sepals 4 lines long; pale purple or lilac petals longer: beak 

 of carpels 2 — 3 in. long. — Common in Marin Co. 



* * Native species; leaves simple, rounded. 



4. E. macrophyllnm, Hook & Am. Subacaulescent, 4—10 in. high, 

 soft-pubescent and with some gland-tipped pilose hairs, leaves 1 — 3 in. 

 broad, reniform-cordate with a broad open sinus, crenate-serrate : pedun- 

 cles exceeding the leaves: sepals oblong, accrescent, at length J^ in. 

 long; petals equalling them, dull white: carpel clavate, % in. long (exclu- 

 ding the 1 in. beak), densely velvety-pubescent: seed oblong linear, ^ 

 in. long, dull, smooth. — Plains of the interior; also toward the seaboard 

 in Marin Co. March, April. 



5. E. Califoriiieuin, Greene. Caulescent, the stem exceeding the 

 rather few radical leaves, 1—2 ft. high; herbage without soft pubescence, 

 but upper part of stem and growing parts with abundant spreading 

 hairs tipped with purple glands: leaves broadly cordate-ovate with closed 

 sinus, slightly 5-lobed, rather coarsely crenate, the teeth obtuse, mucronu- 

 late: fl. much as in the preceding but petals deep rose-red: fruit as in 

 the last. — Berkeley hills and eastward. April — June. 



