Friday.—I have been to-day at the British Museum, studying from the specimens of Plukenet, Catesby, Miller, etc., etc., the authority for old Linnæan species in Ilex, Prinos, Eupatorium, etc. It is slow and tedious work, and I shall not have time to do so much of it as I could wish. Brown told me to-day about Petalanthera. It is Cevallis, Lagasca, Hortus Matritensis, and very probably his species, even C. sinuata. It came from New Spain. You will see Lindley is all astray about the genus, and no one knows its affinities even, but Brown. Lagasca himself refers it to Boragineæ. It is true Loaseæ. I was this evening at Bentham’s, and found he had a specimen of C. sinuata from Hooker, collected by Brydges in Mexico, I think. I have asked Brown to give us some notes on the subject, a generic character, etc., that we may publish a little from his own pen. I am to spend a day with him next week, and I will try to get something out of him. He hinted to me some days ago that he knew something about Cyrilla, but I could not get it out of him. I’ll try again. He tells me he has a character to distinguish true Rhexia, which has escaped Don, De Candolle, etc. We must find it out. Bentham has given me his “Scrophulariæ Indicæ,” and the three last parts of his “Labiatæ;” I have bought the rest (£1 2s. 6d.), and last evening we looked over his North American specimens, and the notes in his copy. He gave me also, the other day, the only published part of the “Plantæ Hugelianæ” and a few other pamphlets. He is a liberal soul.
I have got so far behind in my botanical news that I despair of bringing up arrears, and must leave very much to tell you in propria persona, if we meet again. I fancy I have not very much new to learn on the Continent about microscopes and modes of working. I have seen much of all the best people here, last not least Valentine, who lives in the country, from whom I have derived much useful knowledge. He works to some account, which can’t be said of most here, who, though they have the best instruments in the world, don’t turn them to any important account. As to Sullivant, tell him to have great patience. I can get him a capital simple microscope by Ross for six guineas, but I want to get as useful a one for him cheaper, so I shall wait till I have been on the Continent, I think. My plan is to purchase at Paris for him, where the low powers are good as can be, and supply a lens or two here....
Chapmannia (!) exists in Bartram’s old collection here, which you saw at British Museum, and some other very lately published things.
I bought a copy of “Flora” for Bennett the other day, thinking it worth while to offer him something, as I was taking up much of his time. To-day he gave me a copy of the published part of the “Plantæ Javanicæ Rariores,” (£2 10s., plain, is the publishing price), an invaluable work, containing very many notes and observations on various genera, etc., both by Brown and himself, which it is quite necessary we should see. The notes I have made for the last few days are not now before me, so that I cannot now give you any remarks. There is no one thing of very considerable importance, but much small matter. By the way, let me say that Bennett thinks that Brown thinks Romanzovia to be hydrophyllaceous! Bentham would give something to know this, but I shall keep it to myself. I have made out the remainder of Pursh’s doubtful Arenarias and Stellarias front the Banks herbarium. The parcel of Solidagos, etc., sent to care of Mr. Putnam, I am glad to say, came to hand. It did not arrive until last week, however....
Monday evening, twelve o’clock.... As I sit down to tell you what I have been about to-day, my thoughts cross the wide wave that separates us, and brings me back to 30 MacDougal Street, and to the time when, returning from town, I used to present myself before you, give an account of my proceedings, tell you perhaps some news about that ill-fated expedition of which you were so sick of hearing; how it would certainly sail in a month, or something just as likely. When thinking of this long separation, I console myself with the idea that it is better than if I had gone there. In that case I should now have been your antipodes. Now there are only some four or five hours of shadow between us. And, sluggard as you call me at home, I am up in the morning two or three hours before you. Tell that to the girls for a wonder! I left my room this morning at eleven, walked to Portland Place, called on the American minister, who being unwell I was furnished by the secretary of legation with what I desired, namely, a passport. This I left, as the manner is, at the office of the French embassy, that his majesty Louis Philippe may have fitting notice of the honor that is to be done him, for the king of the French is, it seems, rather particular abut such matters, and it is a pity not to oblige him, especially as you can’t help yourself. This being done I went on to the Linnæan Society, and by working at the full stretch of my powers contrived to get through the Linnæan herbarium (skipping a few genera now and then) about six o’clock. Returned home pretty well fatigued, took some tea and toast, called upon Bentham, whom I found writing letters of introduction for me. I have them now before me. They are addressed to Seringe at Lyons; Requien, Avignon; Lady Bentham (B.’s mother) at Montpellier, with request to make me acquainted with Dunal and Delile; Moretti at Pavia; Visiani at Padua; Tomasini at Triest; Unger at Gratz; Endlicher at Vienna; Martius and Schultes at Munich; Reichenbach at Dresden; Pöppig at Leipsic. These, with what I have already from Hooker, Arnott, Greville, Boott, etc., with a few that I expect at Paris, leave me little to wish for in this respect. About ten o’clock went to Mrs. Stevenson’s party. It was not a very large one, and in no way especially remarkable. I found there of course the Bootts (three sizes, viz., Mrs. Boott the grandmother, Mrs. Boott the mother, and Miss Boott the daughter) and so of course I was upon good footing. Our minister lives in neat but by no means splendid style, quite enough so for a republican; and Mrs. S. is very lady-like and prepossessing in appearance. Mr. Stevenson did not make his appearance. Of course, I did not stay long.
TO JOHN TORREY.
Poor Hunneman died yesterday, after a short illness. I have spent much time evenings with Mr. Valentine, whom I like extremely. Excepting only Brown, he is the best microscopical observer in Great Britain. He cares little, however, for proper systematic botany, for which I am sorry. He has shown me some curious things.
I have learned from Brown the character he observed in our species of Rhexia, that is, the true genus Rhexia: the unilocularity of the anthers....
Tuesday evening, March 12.—After a hard day’s work I finished on Monday evening with the Linnæan herbarium, which I found more interesting than I expected and more satisfactory, as it is in really good state, carefully taken care of, etc. I had some very good notes to make. I assure you I feel much gratified to have studied this collection, which, with the Gronovian, enables us to start fair as to Linnæan species. Do you know that Acer saccharinum, Linn., is A. eriocarpum (spec. Kalm)! Look at Linnæus “Species Plantarum” (which you have not, unfortunately, though it is the most necessary of books; you will receive it at the same time as this letter or nearly) and you will find that the description is all drawn from Eriocarpum.
I took what time I could to-day for the Gronovian plants and a few of Plukenet’s, etc., but was unable to finish; will go to-morrow, for I shall work to the last moment.